Firstly I really don't like this person, so I'm not sure if I'm reading too much into it.
It goes a way back, but I'll try to include the relevant information without being too long. My bf has 3 good friends all known each other from primary and then there's a larger group of friends whom they've met at high school through football etc. One of the 3, let's call him Dave, is the problem. I don't like him, (think stereotypical ukip/trump supporting wanker) never have even before going out with my bf and he's not well liked by the majority in the group, other than my bf and the others from primary school. The rest of them are really nice guys (none share his opinions) and I don't get why they're friends with him, but for some reason they are and they tend to excuse his twatish behaviour as 'it's just what he's like' 'he doesn't mean it'.
He was pretty horrible when I was pregnant with something he said (although he denies he meant it the way I took it). My boyfriend had words with him, he apologised and my boyfriend reduced contact with him.
Now to recent, we've had a few nights out where Dave's been and he's been making his comments and digs again (my bf does always pull him up on them).
Then Friday I went out with friends, my boyfriend is away on a stag do with work friends. His brother who I'm good friends with babysat for our dd.
I saw a few of bf's friends out (Dave included) and was chatting to one who I get on really well with, he'd bought me and my friend a drink, Dave came over and asked 'where the kid was' (never calls her by name) made some comment regarding where my bf was and how hot the girls are there, and said me and the friend looked very cosy. This is the kind of thing he does/says.
Yesterday morning I see a photo my bf's brother put on instagram of him with his niece (my dd) saying babysitting, best uncle kind of thing and tagged their other brother and me, Dave had commented saying 'odd you only babysit when J's away, wonder what you get for that'. Boyfriends brother replied 'fuck off' which he followed with a 'only joking, why you being so sensitive' which is his usual response. I then had a message from a friend who'd seen he'd put a picture on snap chat of me talking to the other friend with some 'while the cats away comment' this would have probably gone to all that group of friends and my bf.
I've only briefly spoken to bf as he's still away and he's said he'll talk to him.
But I know he's going to just say it was a joke and I think it's going to get brushed aside again. I don't think it's just a joke though and although I know my bf trust me I don't want other people thinking there's any truth in it.
Sorry it's long and real school yard stuff! But AIBU, if I say enoughs, enough and that I don't want my bf to be friends with him anymore.