Okay, let me get this straight. This guy gives you such heartache and distress, yet you keep going back to him time and time again. I thought you moved out to start a much healthier life, yet you're still with this guy? I understand that you have strong romantic feelings for him, but nothing, I repeat, NOTHING, is worth losing your sanity over.

Either leave him for good and free yourself from his emotional grip, or lose your sanity by living with him. What's the choice going to be?