That last stanza is perfect, and I think the form you went with for the overall piece only adds to that last stanza being so effective.

Sounds like he's become accustomed to misdirecting all the things he's mad about onto you. Sometimes people who resort to this are privately ashamed. Sometimes, with authentic discussion they can turn this destructive method of dealing with life around.
I hope it softens your pain to know that this stuff is NOT your fault. And it is likely , in the truth that he does love you, that this is a horrible learning phase he's going through. Still, the cruelty of explosive untrusty personalities stings seemingly endless. Write me.

This poem adds a whole new meaning to "familarity breeds contempt." Well expressed Joan!

PS: Adds to favourites.