Guy's Behavior

My boyfriend mentions his female celebrity crush lately with me and is it a red flag?

Lol, this might be a weird question but, when a boyfriend mentions girl celebrities is it a red flag?
P. S. These celebrity girls have an appearance like me (a bit curvy body shape, brunette). But they are dressing up a bit "expensive" and fancy and I do not, do you think he would love it if I started to dress more sexy-ly? To be more precise, I have a style like Aurora's (which he adored) and he's mentioning that he likes celebrities like Jorja Smith/Rosalia.
Just analyzing his behavior lol and want to know if you think he's being sneaky and do you think he's trying to tell me anything with this behavior?
My boyfriend mentions his female celebrity crush lately with me and is it a red flag?
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