ten (cold crush)

Ten is your bestfriend since you're both kids. You guys always hanging out and doing a lots of something makes you both funny. When you got in high school, you fell in love with ten accidentally because he treats you so well as bff. But after enter collage, He suddenly gets annoyed and being cold at you whenever you're around him. He doesn't even listening on what you're talking. He always ignored you. What would u do?