Guess the train

This is a twisted love - because I love you, I have to let you die. Instead of letting you bloom in other people's arms, it's better to slowly cool down in my arms.
Human beings with such thoughts, human beings with sad relationships, human beings around them who are cruelly killed - will go crazy. If you see everything like this, I think I will be crazy, crazy, crazy, crazy! Then die...
- I want to guess a riddle with you
What riddle?
- You said that there are two tracks that tie you to one of the tracks, and there are two trains coming at the same time. Which one will run over you?