If it used to happen a lot and hasn't for a long time but suddenly he's done it again, Is there any chance that something has happened which has made him act out at home, which then resolved but now something else might be going on?
Not trying to excuse him being a jerk but his actions sound slightly like mine when my borderline isn't under control and I'm in a bad funk. I can literally look for fault in anything. It'll actually feel like a genuine problem even if it's actually something really stupid.
As for what I dislike most about arguing, I think it has to be the fact that I've just come onto the relationship section for the first time because I need to make a post myself, except I don't want to, I just want the cause of the arguing to resolve so the arguing and resentment stops. It's me who instigates the arguing. It's over housework, generally. Various aspects of it. From the actual housework, to the attitudes of my partner and my kids, comments which are made, the way I'm taken for granted and the fact I'm feeling so disrespected I'm in tears all the time at the moment. Including now.
Otherwise, we are the best partnership, we have an amazing quirky little family unit.
Has your partner ever mentioned depression or any trauma in his past or potential ptsd recently or in the past?