My boyfriend called another girl the most beautiful girl he's ever seen

My bf (28m) and I (24f) got in an argument, he was telling a story to me and my friend and he started talking about how his friend was sleeping around with this girl and how she was the most beautiful girl he's ever seen and she had a nice body and she was going to be a model. I didn't say anything then I brought it up the next day how it was embarrassing for him to say that infront of my friend and to even say that infront of me is disrespectful. He says he wouldn't care if I did the same and how I dont even know the girl so why do I care. I believe we always have to have a level of respect towards our partner and to me this is disrespectful. I told him that doesn't mean he can't find someone else attractive. We are human. But I would never do that due to having the respect I do for him for just being my boyfriend. Am I in the wrong? I am very open minded and really try to understand his side but it's the same thing ev3rytime we argue it's basically my fault for feeling the way I do because he wouldn't care, according to him.