Wrong for being mad ?

So my boyfriend told me that last night he went to the strip club and spent $250 at the strip club. He had strippers dancing on him giving him lap dances. He says i shouldn’t be mad because “that’s what happens at the strip club.” He didn’t even ask for my permission

Edit: Okay i didn’t mean to say permission. That was the wrong word to use. I was just mad because he told me the next day and didn’t tell me the night before that he was going. I don’t like the fact he had naked women dancing on him. I’m sure you guys wouldn’t like your husbands just going out to the strip club and not ask if it’s okay just because he’s “ a grown ass man “