Is it wrong to not let my fiance go to a bachelor's party?

He asked me if he could go to my brother's bachelor party and I told him no. I mean I know there will be strippers since I heard them talking about it and I don't want him there getting a lap dance from some skank when he should be with me. He got mad at me and told me I'm overreacting and whined about how he had to be there since he's the best man (him and my brother are best friends) but he really doesn't! I mean I don't want my guy with some other women for the night! Am I right?