I'm not sure if I just need a good shake or if this is something I should actually do something about. This may be long, sorry.
I was in an on/off FWB situation for a few years. Admittedly I got more attached than I should have, but I never asked about turning things into an actual relationship because I was scared of losing him altogether, and he never seemed interested in that anyway. That aside, we're really good friends and still get on well.
Last summer I met my boyfriend. We got together pretty quickly, and he only lives a couple of streets away so he stays over pretty much every night. He hasn't moved in, but keeps some stuff here (toiletries etc).
Eventually he met my friends, including ex-FWB. He knows the history with ex-FWB and is okay with it, he doesn't feel threatened and doesn't mind me hanging out with him, though when I see him it's as part of a group, not one on one.
A couple of weeks ago we all went away (group of 8) to a different city to see a band. After we came back to the hotel some of the group, including my boyfriend, went to bed. Me, ex-FWB and another friend stayed up drinking in other friend's room.
At some stage, ex-FWB said that when he heard that I'd got together with my boyfriend, he kind of realised that actually, he did want me, and it had taken someone else being with me to realise that (this wasn't exactly what he said as I can't remember word for word, but it's the gist). He's said something similar the last couple of times I've seen him, though in a jokey tone so I didn't think much of it. But now he's said it a few times I think he means it.
I'm just not sure what to do now. If I was single I'd probably say to him, okay, we can give this a try and see what happens, but I'm not. I've also started questioning how happy I am with my boyfriend. There are a few things about him that irritate me, but what's probably the most worrying is that I can't picture any big life events with him, like marriage, babies etc.
As for ex-FWB, I kind of want to ask him if he meant what he said, because if he did then I need to work out what I want to do about that, but really I can't do anything without sorting out how I feel about my boyfriend, and I'm not sure how to do that either.
TLDR: Ex-FWB likes me, I like him too but I have a boyfriend and now I'm questioning everything