Bf looking up other girls on Insta..should I be bothered?

I've noticed that hes looked up a girl he use to talk to in the past and claims he never had history with her but I already seen old msgs between them when we first got together (5 yrs now).

Also some model that he keeps searching too.

When I bring up that it lowkey hurts me that he does that, he twists it around and says I'm being ridiculous and that he isn't doing anything that it was a "suggested" person, When I know that it only stays in the search history if you actually LOOKED them up.

I may be over reacting but it seriously bugs me and makes me pretty fuxking mad tbh. That's just me tho.

I want to see how others think/feel about it if they were in my shoes.