@AProblem In simple words, she manipulated you and used you. But I guess that's the harsh truth you have to live with. Please try to get used to it as fast as you can. The more you actually think about it, the worse it will make you feel. So just have that "Fuck it" attitude and let her live her own life. God knows what you did for her. She'll get karma for her actions; it's inevitable. Don't worry. I would personally suggest you try the spiritual way. Maybe visit a nearby church, mosque, temple, or anything you wish? Personally, when I feel low, I cook. I don't know why, but it helps me in mysterious ways :)), Wish you luck!!