u/Alternative-Book-653

I 26/F have been dating my 40/m boyfriend for 2 years. We were at a graduation party for his nephew when his ex step mom (his father's wife before he died) came. It was the second time meeting her. She is 39/f and has known my boyfriend since he was 13. I got up to go to the bathroom, and while I was in there she offered for my boyfriend to come to her hotel room with her husband to hang out and drink. We didn't go, but I feel really upset that she invited him (without me being in the room) to her hotel room. I understand that they have a bond since she was married to his dad whose 16 year death anniversary was the other day. I know he wouldn't cheat on me, because I am the love of my life. I don't know if I am being unreasonable, and if I should tell my boyfriend that I don't really trust her. I don't want to bring drama or make my boyfriend feel like he can't hang out with family.