Drained to the max

My husband lives in the past and won’t let anything go. He has OCD thoughts per a therapist and his actions are very impulsive when this happens. He hurts my feelings just because he knows his words will cut deep. He tells me to leave and he wants a divorce about two to three times a week. But then he will say sorry and that he loves me more than anything etc. I have never lied to him or cheated on him and he brings up some random scenario from like two years ago making me sound crazy or forgetful, saying I am lying. I feel sometimes that he has a guilty conscience of all his wrongdoings in his past marriage so doing this accusing to me somehow makes him feel better?

I don’t get it. I cry so much and I feel completely drained. 😫😭