Should I be worried? Or overreacting?

I noticed my Boyfriend is overly talkative & friendly when other women specially new women are around. He’s a funny & silly person in general. But I’ve noticed when there’s a new girl around he acts more out there. Like very excited. Even seems to start acting a little awkward around me.

I’m not sure if it’s just because he’s being friendly or if he’s interested in them but it’s trying to not to show it. Or maybe I’m just being insecure. We’re both 29. Thoughts?