Overthinking if there’s another girl

I matched with this guy on hinge a month ago. It’s been going really well, we text and call often. I got really curious and looked him up on instagram (it’s privat) A suggested friend popped up and it’s a girl that has his first names initial in her bio with a heart. Didn’t think much of it until I clicked on a second page she has linked to her main.

Her latest post, that was actually 5 month ago… is a video with him tagged. The only person she follows on the second page with that initial is him. He has also liked all her post on the second account.

My mind is spiraling and I’m ruining what we have going on because I’m so suspicious. I really need to know who she is and if they’re a thing or have been a thing. But bringing that up is just gonna make me look crazy. «Hey, so i stalked you and found this girl with your first names initial in her bio. Who is she?» Crazy right….

I need someone to reassure me it’s just a coincidence. I tried to follow her but she blocked me…