I'm glad you're doing something fun like you used to

I think I missed some posts in between when I wrote my reply and hit submit - I didn't see all the stuff about your history with him and the social work classes.

What do you think would happen if you just told him what your boundaries were in terms of the way he speaks to you and acts around you? Sometimes people take out their frustrations on and act moody towards the people they are closest to. I don't like the idea of him snapping at you or you feeling like you have to watch what you say so you don't trigger something.

Was he living solo at his last place? Maybe he's feeling the lack of alone time?