Righto my fellow gays, I need some advice.
I'm currently in the dog box with my boyfriend of 6 months (it was our mini-anniversary this weekend) and I'm unsure of whether I've actually been a bad boy or not.
So this weekend we went on a romantic getaway (it's Monday 4:45pm here right now). We drove up (about a 3 hour drive) after work on Friday night and checked in to this cool resort in a small town (pretty big place for a small town). Anyhoo, the guy that checked us in was this complete twinkish babe but I didn't think anything of it. My bf was all "I got a kinda gay vibe from that guy" and I was all "really? I didn't think so".
Anyhoo, fast forward to the next day. We're driving around some beaches etc. and I get this random text message saying something along the lines of "keen for some company tonight?", from a number that I didn't have in my phone. It was my boyf who actually had my phone when the text came in (he was using Maps etc.) but he didn't freak out or anything. So we were like "let's text back for a laugh and see who it is". So I replied saying something like "Could be, who's this

?".
Got a reply a few minutes later saying "as long as it doesn't affect my professional standing..". At this stage we were joking around saying that it could actually be the guy from the resort. So we replied with "of course it wouldn't", and then jackpot, he writes back saying "it's (name) from (resort)". So, I was pretty amped because a three-way is pretty much the only thing on my bucket list, and the guy is pure sex on wheels. It's not that my bf isn't, because he's even more gorgeous and amazing, but there's something so sexy about a threesome with some random hottie who propositioned us.
So we wrote back and basically said yea boy, we're keen as. At this stage, I was sure that my bf was just as keen as me but he did express a little doubt. So we had dinner and a few cocktails and stuff, while we waited for the new dude to finish his shift. We went back to our room and just hung out for a couple hours, watching TV & stuff.
To cut a long story short, the guy comes up to our room and we're just hanging out and stuff, he's getting a little handsy which was hot, but my bf secretly texts me and says "not ok with this, freaking out quietly, sorry" or something like that. So straight away I was thinking "ok we've gotta get rid of this new dude so it doesn't hurt our relationship". So we slowly let him down and say see ya later and all that, which he was cool with. At this stage it was 3am and I was extremo tired so I just went to sleep.
Now my bf is having issues with everything and thinking that I'm constantly on the lookout for other guys to have threesomes with etc., even though it wasn't me (or him) that even initiated this whole situation.
He says he just needs time to get over it and process it and everything, because he has trouble separating sex from emotion. He says he couldn't bear the thought of me getting or giving a blowjay from/to some other guy, even if he's right there joining in.
What do I do? Am I in the wrong here? We spent the whole drive home with him (my bf) sitting there in silence, being passive aggressive about everything. I was gutted that I missed the opportunity to fulfill a huge fantasy of mine, and in an incredibly hot way, but at no stage did I pressure my bf or get upset with him for calling it off.
TL,DR: Boyfriend and I went away for the weekend and got propositioned for a three-way with an incredibly hot hotel worker. Boyfriend calls it off as it's about to begin and is now pissed off that I was keen for it.