Never never give up no matter how bleak it looks or how bad you feel. Never give up.
Go dark with him, do not contact him, call him, text him, even though every fiber of your being aches to do so. Let him miss you.
You need to GAL, seriously, it's the only thing that will get you over the funk and despair you are feeling. Trust me, I know the feeling well. It comes and goes but it truly tied to GAL. I know you feel like you can't do anything on your own, but YOU CAN and YOU MUST.
Do something, anything, make a list if you have to. Make it as simple or basic as you need it to be to start feeling better.
1. get out of bed 2. brush my teeth 3. get dressed 4. eat breakfast