As a guy who has been the angry screaming husband, I can tell you what happened to me.

I started with a great relationship, there was nothing I wouldn't have done for her,or her kids. When life and pressures started taking its tolls affection was withheld. My connection to her faltered after years of it and I began to stop making that effort out of fear of being rejected over and over. Of course life's pressures didn't stop, they became worse. Life lost all meaning to me and I became resentful and angry.

Everyone here tells you to sort yourself out, leave him etc, I would ignore that... You got into a relationship to support each other through good and bad... I suggest you try to point this out to him when he isn't charged up.

Of course the npc thing is just kick him to curb and don't stand for it, your an independent woman who don't need no man..... Especially the husband you chose.