Fighting with husband

We’ve been fighting literally every night as of late, and I’m exhausted. Looking after baby, fighting with him, barely able to take care of myself. And I feel like he just doesn’t understand at all, he’s so one sided and has been talking and acting very selfishly and he can’t seem to see himself, or be told about himself. It’s getting on my nerves and everything he says and does sort of gets on my nerves. It doesn’t help that I’ve been dreaming and thinking of our terrible past lately…. Then getting all huffy with him about small stuff…. I just feel very angry and there’s nothing I can do about it. It’s like every day he adds to the proverbial “pile” that builds up my anger sadness and resentment and he shirks it off and does not care abt how I feel (never rly has cared much) and I just sit here and accept this? I don’t know i sort of hate myself for allowing it to get here and now I can’t change it, no matter how much I try.