What to do if your crush likes someone else?

Anonymous
There's a girl that I'm starting to like who goes to college with me. We met at a class some time ago and we haven't shared one since, which means that we're in touch either because we see each other randomly at college (once every week or two) and by texting, where we have long (3-5 hours) conversations. We trust each other and all that stuff. Also, she started some of our talks lately (which is weird in her), but... if I'm not paranoid, I think she likes someone else.
What should I do?
What to do if your crush likes someone else?
2 Opinion