How to not care if my boyfriend follows bikini girls?

hey everyone,
my boyfriend follows a lot of girls who show their butts on instagram and who are in bikinis. i’ve told him that it bothers me, he will tell ask me who and he will unfollow them but will later follow more. i have asked him if he will continue and he tells me no but i need to stop complaining first. i’m truly mentally exhausted with this relationship and I don't know if it’s going to last much longer. so i’m asking how to not care if he follows bikini girls? i don’t want to care anymore even if we don’t work out, i don’t want to care if another partner does the same thing. please be nice in the comments thank you :)
How to not care if my boyfriend follows bikini girls?
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