There is a reason why you feel exhausted all the time. Your energy is being sucked right out of you. And this is costing you everything- your relationship with friends and family, your career, your finances, and most of all, your happiness. When you're in an unhealthy relationship, you are caught in a vicious cycle I like to call the "Good Bad Ugly".
Good: The honeymoon period after a fight. You're cuddling, having intense sex, he's doing big romantic gestures. It's an extreme, intense high.
Bad: He starts pulling away again. He's not responding to texts, he's acting suspicious, he's spending all his time fixating on a distraction like fantasy sports, porn, drinking, other women or whatever is his personal flavor. You're trying to talk to him and find out what the problem is and he insists nothing's wrong, you're just acting crazy.
Ugly: The big, intense, explosive fight sesh that goes until 4 in the morning. You've said...