Introduction to Advanced Mathematics

Ling Chuan and Lu Nan strolled in the colorful streets. A series of turmoil had just ended. The man surnamed Qian received the price he deserved, and Lu Nan was safe and sound.The hidden dangers in his heart have been resolved, and this should be a relaxing moment, but Ling Chuan doesn't think so.

What Yingli said to him that day is still lingering in his heart. After three years of parting, could it be that his feelings for Lu Nan have really faded in time, leaving only the responsibility of "I should love him" ?

He is still very happy with Lu Nan, but this layer of happiness is so thin, without other emotional support, it's like eating a piece of cake that is too sweet and always looking for some sour taste to spice it up.

There are many bars on this street, and there is no lack of charming street girls. If you are in the same class, you will find handsome men dressed in sexy clothes under the street lights, seducing customers with special sexuality with provocative eyes.

It was Ling Chuan's suggestion to come to the bar, and Lu Nan, who was not used to clubbing, could only ignore the hot hints around him, but as the two of them stayed longer and longer, Lu Nan was already a little uncomfortable.

"Let's go." He whispered in Ling Chuan's ear through the loud music.

"Okay," Ling Chuan put the empty wine glass on the bar counter, "Then wait for me, I'll go to the bathroom and we'll go when I come back."

Ling Chuan's figure disappeared at the corner going to the bathroom, and some monsters and monsters took the opportunity to approach Lu Nan to find out what he said, but they were all driven away by his cold attitude.

Ling Chuan grabbed a MB who was doing work outside the toilet door. The other party held a cigarette and looked him up and down: "I'm sorry, I don't do it."

"It's not me." Ling Chuan stuffed the money directly into his pocket, "There's a single man in a suit at the bar, if you can handle him, I'll double it for you."

Cowherd glanced at the thickness of the banknotes in his pocket from under his eyelids: "A deal?"

"It's a word."

Niu Lang twisted his buttocks and walked to the bar, took a seat where Ling Chuan had been before, and cast a 200 million-volt wink at Lu Nan.

"Handsome man, are you alone?"

"There's someone here." Lu Nan refused coldly.

"Don't be so indifferent." Cowherd approached, grabbed the other party's tie ambiguously, rolled his eyes, and breathed like blue, "At least not now, isn't it?"

Ling Chuanyue felt that the time was almost up, and when he turned out of the shadow, he saw that the two people at the bar were very far apart. If the angle was a little bit off, he might think they were kissing again.

When Ying Li asked if Ling Chuan would be jealous if he liked Lu Nan, he couldn't give a clear answer. After thinking about it, it might be because it was just a hypothesis, and he couldn't react to a hypothesis.So Ling Chuan thought of a ridiculous method, he wanted to see Lu Nan with other people with his own eyes, so that he could test whether he would be really jealous.

The cowherd was getting closer and closer to the handsome face of the target, but suddenly the expression on that frosty face changed, and before he could realize what happened, he got a hot slap on the face.

Cowherd stupidly covered his face, as if he hadn't recovered from the shock of being beaten, Lu Nan casually grabbed the half-drunk foreign wine from the bar and poured it all over the cowherd's face.The scarlet liquid trickled down his hair and jaw, staining the heavy makeup on his face.

"Shameless!" Lu Nan yelled loudly, his voice even overshadowing the music in the bar. As early as when he slapped people, someone noticed this side. After three consecutive shots, almost everyone in the bar focused their attention on Er on people.

Ling Chuan, who had witnessed all this with his own eyes, only had the word "fuck" left in his mind, so he couldn't think of any jealousy or not. He rushed over and was angrily pushed aside by the oncoming Cowherd.

"You two perverts!"

After he finished cursing this sentence, he ran to the bathroom to touch up his makeup without looking back. Now that Ling Chuan had become the focus of everyone's attention, he had to lower his head desperately, and quickly pulled the angry Lu Nan away from this embarrassing place. The place.

The two walked one after the other, Ling Chuan walked more and more slowly until he stopped completely.

"What's wrong with you?" Lu Nan heard that there was no movement behind him, only to realize that Ling Chuan had pulled away from him.

Ling Chuan thought about it all the way, but still made up his mind.

"Lu Nan, let's break up."

Lu Nan seemed to hear something incredible.

"What did you say?"

"I said let's break up." Ling Chuan summoned up his courage, "I may not love you anymore."

Lu Nan seemed to have been greatly stimulated, and was speechless for a long time.

"I saw you like that in the bar just now. My thought at the time was not jealous, but rather embarrassing."

"But the incident at the bar is not the reason for me to break up, but," Ling Chuan struggled, "you have become too much over the years, you are timid and cry a lot, and you are no longer the Lu Nan I like."

Tears welled up in Lu Nan's eyes, rolling down in big drops, like beads with a broken thread.

"Look, why are you crying again while you're talking?" Ling Chuan stepped forward helplessly, took out a handkerchief from the other party's pocket to help him wipe his tears, but couldn't finish it.

"I found that I really don't have feelings for you anymore. I'm with you now. It's not so much love as gratitude. I'm grateful for everything you've done for me. But if I'm with you because I want to repay you Together, this is too unfair to you."

Lu Nan cried so hard that he couldn't speak at all, and almost passed out.

The handkerchief couldn't stop Lu Nan's tears, so helpless Ling Chuan had no choice but to take a step back: "I owe you too much, and I will try my best to repay it in other ways, you know, if possible, I really want to give my I will pay you with my life."

Lu Nan cried even more sadly.

"But only in terms of love, I don't want to continue to lie to you. You deserve to have someone who truly loves you by your side, and I'm sorry," Ling Chuan looked at him regretfully, "I'm not that person."

He bowed deeply to him one last time, and didn't look up when he got up. He was afraid that he would compromise under Lu Nan's tears, so he just said in a low voice, "I'll go up and pack my things."

He ran upstairs, packed all the things he brought into his luggage, hesitated before going out, then went back and stuffed all the CDs into the box, and left Lu Nan's house.

When he went downstairs, he found that Lu Nan hadn't gone anywhere, so he hugged his knees and sat on the steps across the road, crying like a homeless puppy.

He hesitated for a long time, and finally gave up going to comfort him. He was worried that once he passed, he would not be able to leave again.

Relentless, Ling Chuan reached out to stop a taxi, and walked away under the watchful eyes of Lu Nan.

***

Yingli has no news from Lu Nan for more than half a month, and even the phone calls she made are infinitely answered and the phone is turned off.

Uneasy Ying Li rushed to Lu Nan's house, knocked on the door for a long time but no one answered, and finally disturbed the neighbors.

"Did you come to see Lawyer Lu? Did you travel with that friend of his? I haven't seen them coming in or out of here for a while."

Without saying a word, Ying Li took out the spare key, and the moment he opened the door, he was suffocated by the smell of alcohol and took three steps back.

He had no choice but to hold his breath and break in. It was daytime, but the room was extremely dark. The thick curtains cut off all the light, and it was like a dead place abandoned by the sun.

The first thing Yingli did was to draw the curtains and open the window, and then saw Lu Nan collapsed under the sofa reeking of alcohol. , with countless wine bottles discarded around him, and himself looking lifeless.

"Lu Nan, Lu Nan!" Ying Li ran over to check his breath and pulse nervously, but luckily he was still breathing.

Lu Nan also frowned at the interference of the light, silently repeating a certain word.

Yingli stared at the wine bottles all over the floor in horror: "Drinking so much wine, are you dying?"

There was movement in Lu Nan, Ying Li had to get closer to listen, and heard him calling another person's name.

"Xiao Chuan..."

"You half-dead for Ling Chuan?"

"He loves me……"

"He loves you!" Ying Li couldn't help but explode, "He loves you, can he bear to let you like this? Look at how decadent you are now, you are almost dead!"

"This is proof that he loves me. He is very sad. He is begging to die. He doesn't want to live. You save him..." Lu Nan's words were incoherent and rambling, and he fell down drunk after finishing speaking.

Ying Li gritted her teeth angrily, and dialed Ling Chuan without saying a word.

Ling Chuan's voice on the other end of the phone was unbelievably calm.

"Hello, Inri?"

"it's me……"

Before he could say the second sentence, Ling Chuan interrupted him.

"I know what you're going to say, but I'm sorry I don't want to hear anything about crossing the border with Lu Nan."

He continued to speak calmly: "We have broken up, just after you told me that I don't love him. I thought about it. You are right. I won't be sad to hear that he is sick. See him with Others will not be jealous when they are ambiguous, and even the moment I proposed to break up with him, I didn't have any sad thoughts."

"Maybe I have experienced too many ups and downs, and my personality has become really cold-blooded. I am not qualified to stay with Lu Nan if I don't know how to love. Please don't persuade me. Even if I go back out of guilt, it's just for both parties. It will only add trouble. Stop contacting me and let time dilute his feelings for me, which is good for both of us."

Without waiting for the other party to say anything, Ling Chuan pressed the phone off, called again and then pressed it off, and finally turned on mute.

He pressed the play button on the remote control, and the previously static picture began to move forward again. He just wanted to finish watching the past between himself and Lu Nan. Today is the last disc sorted by date. After today, he will Completely separate Lu Nan from his life.

The video was recorded three years ago, during the darkest period of Ling Chuan's life. Ever since he appeared in the camera, he has been crying non-stop.

"Don't cry," Lu Nan wiped his tears for him, "You won't be on camera when you cry."

"I'm sorry, Lu Nan is sorry." He kept repeating the same words.

"I understand you. Auntie's body is more important than our affairs. Our separation is only temporary. No matter how long the period is, I am willing to wait for you."

Ling Chuan cried so much that he was about to run out of oxygen.

Lu Nan put something in his palm, and Ling Chuan spread it out, it was a delicate little bottle.

"It's the bottle I bought at the night market."

"Want to try it?"

"Didn't you say you lied to the children?" Ling Chuan asked, sobbing.

"It doesn't matter if you try it, even if it can give you some psychological comfort."

Two people face each other holding hands, and the bottle is placed in the center.

"This video is a witness to our ceremony. I want Xiao Chuan to be brave and happy. I don't want him to cry for anything, I don't want him to be afraid of anyone, and I don't want him to suffer for the life and death that he will inevitably experience in the future. From today on, his sorrow, Anger and fear will be borne by me, and every tear he shed will be replaced by me. The memories that hurt him, including everything today, will be slowly forgotten, leaving only the good part."

As he recited the oath, Ling Chuan's tears gradually stopped, and the tears he shed flowed from Lu Nan's eyes in an endless stream, more and more dense, like a never-ending scene rain.

Lu Nan's voice became more and more choked up: "This promise will only end when the bottle is filled with tears. Even if this condition cannot be met in my lifetime, I am willing to bear the pain of my life for him and never let him know the truth. "

Ling Chuan jumped up, grabbed his phone, there were dozens of missed calls from Yingli on it, and there was a text message at the end.

——Lu Nan was sent to the hospital for emergency treatment due to alcohol poisoning. His life may be in danger. If you still have a little conscience, come and see him.

Ying Li was waiting outside the emergency room, and saw Ling Chuan running over panting.

"Where are the Lunan people?"

Yingli looked indifferent: "What are you doing now? It's too late."

The door of the emergency room was pushed open, but the face of the person pushed out was covered with a white cloth.The dignified medical staff pushed the hospital bed past Ling Chuan. He watched them leave with wide eyes, but he didn't show any sadness.

"You really are a hard-hearted person," Ying Li laughed angrily, "You said that even if Lu Nan died in front of you, you would not shed a single drop..."

His voice stopped suddenly, and he stared at Ling Chuan in a daze.

"Xiao Chuan!" A familiar call came from behind.

Ling Chuan turned around, Lu Nan was pushed out from another door in a wheelchair, his eyes met, Lu Nan was also stunned.

"What's wrong?" Ling Chuan asked without knowing why.

Lu Nan didn't say anything, just tapped the corners of his eyes with his index finger.

Ling Chuan stretched out his hand to touch it, and took it off mechanically. There was a crystal clear liquid on his fingertips, which felt a little moist to the touch.

"Ah, full."

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