Kinda annoyed hookup didn't tell me they were in a OR

Soo I don't have anyone to vent about this to, and I'm sort of blown how this went down.

I don't hookup often cause I like to have more of a regular fwb situation and I moved to a new neighborhood a couple years ago and haven't met anyone cool yet. Well I met this attractive bottom nearby and we finally met up after a bit of back and forth. It was going great I was being an excellent munch even worshipping his muscular yet thick body and it was great. Thirty minutes and various positions later he told me you know what my boyfriend is waiting for me. And I'm like what and he goes on to tell me yea he's in the other room waiting for me cause I have to go to the restaurant. A wave of relief washed over me first because I thought we were about to have an unexpected third. Then realization hit that this hookup was coming to an end yet he kept asking me if he can see me again and asked when. I looked at him confused "nah you tell me?" And pretty much wrapped it up and got going and on my way out he said when I can I see you again and I said you tell me and he softly smacked my cheek and said no you tell me. Like dude we were literally just hooking up I didn't know it had to be a quicky. So yes I type this while slowly walking back home, blue balls hanging low. I deleted our chats and am not tripping if he doesn't reach out again. I didn't even get to see what the boyfriend looked like. This was a new one for sure I guess nothing bad happened I was just mislead and typing this out got it off my chest. Anyway what do y'all think