How can a guy cheerup after being heartbroken?

[Rachel]

Learning to deal with rejection is one of the most important parts of relationships. There is a HUGE difference between being "heartbroken" and "upset", be very careful which word you use.

If you know for sure that this girl is interested in someone else, you really just need to accept that she is not interested in you and move on. As horrible as it is to come to terms with, and as difficult as it may be to hear that over and over again(which you will), it really is the only solution to your problem.

There's always a possibility she will come back to you and act interested in you again, and if this happens you really need to put your foot down and say that you're not the kind of person who likes to dance around a relationship--ask her straight up if she might ever be interested, or if you're wasting your time courting her. It's okay to say stuff like that, but just make sure you don't go up to her like HEYYOUILIKEYOUALOTANDIWANNAKNOWIFYOULIKEME because that will probably come off as alarming haha. Patience!