this guy is used to see (we didnt officially date, as he moved to another country) and i cut things off last year . recently though, he’s been messaging me periodically , asking to hang out (just at the gym, etc) ever since he came back. i never said yes, because he doesn’t know that i know about his girlfriend, and he’s never mentioned it, despite all the chances he could’ve. but he’s never tried to make a move on me, or be flirtatious in any shape or form. why would he be persistant (even if it’s not everyday) on messaging me , even when i don’t reply ? i’ve recently done some digging and ultimately decided to block him on everything , as i just find it so strange ? what do you think ????