super jealous 🤐 now really hurt

I'm jealous of my bf friend who is his best friend, he invited her to come when he was going to a game and he was going to stay in a hotel with her a few other ppl, I saw he was messaging her trying to get her to come, stupid or not to be jealous?? update* he is there now and I just found out she's going to be there, he didn't tell me, but says they aren't sharing a room but idk it's just them and 1 other friend, there's no other people like he said there would be