Am I wrong for feeling like this?

So I was using my bfs phone the other day when we were together and went on Instagram to look for a profile that had funny videos and i noticed in his recent searches he had three girls one that he’s close friends with and is really pretty, one that I don’t know but has her ass out as her profile pic and a bunch of pics like that on her profile and another that we both know. I’m not sure if I’m thinking too much into this and am just really insecure but is it weird that he was searching their profiles up? Like I would understand if it was another social app but it’s Instagram where all people do is post pics primarily of themselves so I feel like if people search others it’s to look at their pictures right? I haven’t brought it up to him and asked for fear that I’m sounding like a crazy gf so that’s why I’m asking on here if I’m wrong for feeling a bit strange about this?