am i just overthinking it?

Ok so theres this one user that i notice, ones i turn my account public they will always view my stories, i mean i dont have anything against that if they were on my following/follower list but no they aint so one thing is that they stalking me as the obvious im quite bother by it dk why and im also suspecting someone who it might be the user of that acc, so should i try following them or not because im curious and their account is on private.