ever heard of a user named Alex?

a "guy" named "Alex" has recently added me as a friend, and he had a professionally taken photo of somebody as his profile picture. he says he's 37, a model and loves goth girls and fast cars. i had my suspicions. i reverse searched the photo and found the same photo on a stock image site lol. if he was real he wouldn't use such a picture, and probably would have more info on his profile. he keeps hitting me up on IMs and talks to himself and probably thinks i'm the girl in my profile picture lol. this could be a 50 year old creep looking for some very young girls to exploit. beware.