This was not BL. The story is about this guy who is married or has a girlfriend and is with another younger girl. She is supposedly on birth control the guy goes back to his wife/girlfriend and doesn't realize the other girl is pregnant. in the end the guy is in a car and sees a young boy with the same mole he has on the palm of his hand. Time has passed and that boy is obviously his son. I believe that is how the story ends.
I think it was a one shot in which these two high school kids get caught by their parents, so they run away and live together for a while. But one of them falls really sick, so they're forced to go to a hospital, where their parents are called. They're forced apart, and grow up. The ending scene is of them on a bridge on opposite sides where they meet by coincidence
This is BL of course!! (≧∀≦)
GRANNY YOU'RE THE BEST!!!!! you're an angel brought upon Xiao Hang and Ye zi....and that aunt needs to disappear, she can't hurt our babies!!! (╬ ̄皿 ̄)凸