Am I tripping?

So my boyfriend calls me back tonight talking bout he going on 2 trips this summer. I knew about one he was taking with his cousins, but then he mentions this other trip with this girl. So of course I ask who she is and she’s his “ex bestfriend” and idek her. Personally ion trust all that bestfriend shit. Anyway I’m asking who all going he tells me it’s gonna be him her and some other girl and MAYBE his cousin.😒 I’m obviously getting upset Bc he’s gonna go on a trip to Atlanta with two other females who I’ve never met. He’s tryna counter my argument by saying I’m going on a trip without him but my trip is an ALL GIRLS TRIP! And he knows it and is trying to call me a hypocrite Bc I don’t want him to go. Am I tripping or do y’all see why I don’t want him to go? It’s just gonna be them for 5 days down there and I personally do not trust it.