Does your GF have any celebrity crushes? Does it help to think about how you'd react to her obsessing over Timothy Chalamet?
A thought that comes up:
What you want out of your life is to enjoy the people, animals, experiences and things in it. You want to enjoy your girlfriend. You also want to enjoy celebrities. You shouldn't spend too much time thinking about whether or not it's ok to enjoy both.
It's true, in our culture you and her are supposed to have some exclusivity. But, we're very complicated beings. In my view, the only things that need to be exclusive in a monogamous relationship are sensitive information, the act of sex, and anything else the two of you agree on. I see the exclusivity as an intentional choice, and only related to actual acts, not your thoughts. You choose that you like that person, so you choose what actions you will take.
You do not choose every groinal response and every horny daydream. You're not commiting betrayal by having feelings about someone. Also, the sexual exclusivity you have with one person shouldn't subtract from your life in other ways. It shouldn't create anxiety that prevents you from enjoying someone's work.
If a celebrity gave you thoughts before the relationship, would you feel wrong about that? How about for her?
Well, your brain doesn't change how it works just because this relationship started. The brain wants you to make as many babies as possible. It's gonna make you look at as many girls as it can, and make you think dirty thoughts about as many of them as it can. I think the goal should be to not worry about having those kinds of thoughts. But, if your goal is to reduce them, just know that it will take some time. It's up to you how you want that to change over time.
For me, I accepted that those thoughts are simply distractions in most situations, considered disgusting to many, and exactly what some people want me to be thinking. They're just natural, so try to experience them without stress. If you can let go a little and observe with less stress, it makes it easier. I still have all the thoughts but they just feel small and unimportant now.
Also I'm single lol, but at this point I suppress my reactions to these thoughts out of respect for people. By that I mean, I feel very little stress, and the first thought doesn't create a second one. "She's attractive" doesn't lead to "what if she thinks that about me" to "etc." to *daydreaming about our wedding*. That is what used to happen when I'd just check out at the grocery store.
This was supposed to be a short comment but my mind just goes when I start writing.