Is it reasonable for me to be upset that my boyfriends profile picture is of another girl (celebrity of sorts)?

My boyfriends favorite game is rainbow six siege and he has always followed pretty female content creators who also play the game and of course it makes me a bit insecure (as someone who is far from diamond-champ and has a different style then these girls) but I have never made a big deal out of it.

Recently, though, he has commented some flirty things on videos from iPxpy and made her his profile picture. It makes me a little uncomfortable to have it go that far but is it something I should be upset about, let alone bring up?
Is it reasonable for me to be upset that my boyfriends profile picture is of another girl (celebrity of sorts)?
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