[22 F & 28M] my boyfriend said he had the time of his life hanging out with another girl

My boyfriend and I went out clubbing last weekend with some of our friends.

In the smokers area there was this one girl sitting at a table so we asked if we could sit with her and she said yes and we started talking to her.

I had a friend come later so I went and met up with her (in the same club) and we hung out inside for a bit before we went up to the smokers.

I don’t remember what I said or how this happened but my boyfriend said that he had the time of his life hanging out with this girl that he had only just met.

I guess that made me feel a bit weird. She was pretty cool but I guess it just feels weird that my boyfriend said that about another girl when he’s not said that about hanging out with me.

TLDR - boyfriend said he had the time of his life hanging out with another girl.