Horribly devastated and depressed..how do I cope?

Firstly it is natural to do what your doing.. If you weren't breaking down and crying I'd think there was something wrong with you or you just didn't care. Honestly you just need to pack up and leave you sound like you have very low self confidence and possibly a love addiction problem. I am just being honest with you and not trying to put you down but giving you the real breakdown. He probably does love you but he doesn't want you anymore. I'd leave