I'm really sorry about this situation. You probably don't need antidepressants and you definitely DON'T or shouldn't be dating to "get your mind" off this. Please, please, please don't date anyone while you're in this vulnerable awful, upset, angry, sad emotional state. It's not fair to the other "daters" who are really looking to settle down right now. Keep your head on your job, exercise and just continue to talk (vent) to your family and friends. This is painful and rough, and frustrating - I'm sure you want to punch a hole in the wall. You deserve the time to grieve this... I can only promise you that in 2 years, it will be easier, in 5 years you won't think about it CONSTANTLY and in 7 years, you'll probably be so focused on other people in your life that this won't seem nearly as bad as it feels right now. You need time to heal. Hang in there and don't beat yourself up. Take the money from here for the rent, and then get out and get your own place - free of all of her stuff. I wish you the best.