So this girl followed me on Instagram a few days ago and she only has two mutual followers with me. My boyfriend and this other guy(I know him too). Apparently they use to all go to school together in Hawaii but then he moved and started going to my school. Anyways she always comments on his pics like "Damn 😍" or "😍💞💍" stuff like that. Then like out of no where she followed me. Not that many people know we're dating so I thought maybe she followed me cause she found out somehow so she's trying to snoop and see what kind of girl I am or something? I decided to message her and ask why she followed me but she kinda just read my message and ignored it...should I be worried or am I over thinking things?