Over the past few weeks, a young chap in my local supermarket has been quite friendly when I've gone in but nothing I thought too much about - just the usual "hello", "how are you?", "finished work?" type comments. He asked my name once (Katherine) which I gave. Then a few days ago, I got a friend request from a name I didn't recognise, and ignored it. When this person started liking old posts from years ago and messaging saying 'hi', I responded to say I don't think we've met, to which he replied 'we have'. It started to feel a bit creepy, and then he said he works in my local shop. I haven't replied or done anything with the friend request, and probably won't go into the shop again.
I'm 50 - easily at least twice his age, the biggest I've ever been (officially obese), and aging more like a dried grape than a fine wine, so very much doubt this is an attraction issue. But the weirdest bit is his thinking it was ok to try to add me in the first place, and I'm not sure how he could have found me without my last name.
Am I being unreasonable to think this is a bit creepy?