<human>: Can you provide a brief overview of the text?

So my boyfriend (32 m) and i(25f) were at a friends house for a party. We all got kind of (very) drunk, and a friend in the group (41?m) ended up interacting with me sexually while I was sick. We were both drunk and I was all about it it isn't a consent issue; he is engaged to be married in a month and that's part of my issue. I told my boyfriend that it happened , and now he wants to just avoid going to his best friends house for parties any more so we don't have to see this guy and his fiance/wife. I am not okay with avoidance though, and I would really like to talk to this guy even if it's just to say it was a mistake. Just something. It was a sudden and unexpected interaction. I have no way of directly contacting him, but he left his business card at the end of the night still. That leads me to believe that he is open to talking. I just don't know what the right thing to do is. I don't know if I could live with myself without ever saying something to this guy, but I also will have to do it behind my boyfriends back at this point. Help reddit, please.
<bot>: drunk made out with an engaged guy, my boyfriend wants to avoid them at the expense of his best friendship, should I contact him behind my boyfriends back to try to make things right?