Do I confront him?

I’ve been with my man for 9 months and while we’ve been together I’ve gotten really close with his closest friend. I didn’t like him at first but as I’ve got to know him we have a really good connection and get on well he’s always the mediator between me and my man he’s become sort of like my best friend now too. So anyhoo we were at a party last night and my sister was all over him twerking in front of him and just desperate for his attention and it was actually quite embarrassing especially when she’s already got a man so just before I was leaving because me and my man left early I went over to our friend and I was like “you better not go near my sister” in a kind of jokey way and then he was like “it’s not your sister I want” now I really got the impression he was hinting at me. And I’ve never really looked at him in that way but I’d be lying if I said it didn’t make me feel some sort of way 😩 I don’t know if maybe I’ve misread it or maybe it was the alcohol I don’t know but do I just forget he said it? Do I confront him? Do I tell my man? Of course I would never pursue anything with him but what do I do?