Is this normal or am I just insecure ?

Okay so I’ve been with my bf for 5 years and I still get wierd feelings when I see he follows girls on insta. They’re not models or girls who wear anything revealing but they’re girls who I’ve never heard of before. He follows only 75 people and tbh I don’t understand why he follows girls if he says he’s all about me or that he only has eyes for me. Like he’s loyal and doesn’t make me feel like he checks other girls out but I’m just like … why do you follow girls if you can care less about them? It just makes me think he’s picky with his followers and a girl he follows must be special or something bc he only follows 75 people.

I know i probably sound unhealthy but im just being real. I don’t bring this up to him bc I do think it sounds stupid to even discuss but it’s how I feel. Am I being overly insecure or does anyone understand/see my point?