AITA for kicking some dude from our group because he wont stop talking about my ass.

I was at the pool with some new friends I made recently. I'm a 24F (5'11" 170 lbs) and I have what many have referred to as an "ass like an onion, it makes you cry." I'm used to random ass comments from men and I usually just ignore them but this other dude in the group (28M, let's call him Rick). Seemed nice enough but he just wouldn't shut up about my ass. I'd try to change the topic and he's bring it back to how perfect it looks in my swimsuit. <br><br>I told him to stop multiple times but he'd just laugh. I finally snapped and told him "you know what? You're not some fucking 14 year old boy, grow the fuck up and stop being such a creep." Some of the group got really quiet and others told me I was being unreasonable and it was "just jokes" but I decided I didn't want to be in a group with some dude who thinks it's ok to act like that and kicked him from the groupchat. <br><br>A day later some girl from the group (who remains one of my friends) approached me about the whole thing. Apparently many found my reaction unjustified and thought I was just feeding my ego by being "another entitled girl" who won't take a compliment. <br><br>AITA?