AITA for telling my (23F) girlfriend I (25M) feel weird about her thirsting over K-pop idols?

So, my girlfriend (23F) is really into K-pop, and I (25M) totally respect that. I don’t mind her enjoying the music, watching their performances, or even finding them attractive. But she has a ton of pictures and videos of her favorite idols saved on her phone, including shirtless and half naked ones. She actively thirsts over them and simps for them, which makes me feel kind of weird.

I brought it up, saying that while I get having celebrity crushes, I personally find it odd to save and gush over them like that, especially in a relationship. To me, it just feels off. I don’t have pictures of half naked women saved on my phone, and I wouldn’t thirst over them publicly out of respect for her.

Her response was that she doesn’t see it as a big deal. She compared it to having anime or book boyfriends, saying that even though K-pop idols are real people, they’re still “unreal” in the sense that she’ll never meet or interact with them. She also said she wouldn’t mind if I had a celebrity crush or found some YouTuber attractive, and she’d probably simp with me. The only thing that would bother her is if I actually interacted with that person.

This led to a debate because I don’t really see it the same way. To me, there’s a difference between thinking someone is attractive and actively saving thirst pics and gushing over them. But at the same time, I don’t want to be controlling or make her feel like she can’t enjoy what she likes.

So, AITA for feeling weird about this and bringing it up? Or am I just overreacting?