am i overreacting my bf went to a strip club

so my boyfriends brother had a bachelorette party and went to a strip club i didn’t mind but i have expressed to my boyfriend how i wouldn’t like it if he lusted after another women it’d make me feel bad. so anywho he went and got 2 table dances allegedly they were 300$ a piece and then he was going to the back room with her for 600$ but it declined on his credit card which is how i found out about it. he was honest about the situation but it still make me very upset and i felt cheated on that another women naked was rubbing on his i know it’s there job and that’s why you’d go to a strip club but i mean lap dances are voluntary and i feel like he shouldn’t have gotten one. so im courious am i wrong for being really upset like “breaking up” upset i just feel like im overreacting but i can’t help but feel so hurt and upset. also he claims that he thought the backroom was just more naked he didn’t think he’d get anything or do anything which i think is bs if i’m going to backroom i want so action but also im not a stripper or client so idk what happens back there..