SO's and Strip Clubs

So my SO is going to a strip club for a bachelor party.. I have never been to one and it's really bothering me that is he is so excited to go. I have tried talking to him about it but he basically tells me it's just because I haven't been to one and I have nothing to be concerned about.... I tried telling him it's not about him going.. It's about how dismissive of my feelings he is and how blatantly excited he is. Am I just being over sensitive??? What are your feelings on this subject?