You said "your lost and in pain " Its ok to mourn the loss of a relationship of course its natural. Working on your self so you feel better and are making better life choices are the best way to move forward with your life ..

Maybe he will be back in it or maybe he wont.. The point I am making is the best thing you can do for yourself is just keep working on yourself to become the healthiest emotionally and mentally that you can be.

Dont get stuck putting all your hope and love on getting back with him.

Take care