He's a real sick puppy, 2 kids at home and a wife who presumably knows nothing about his proclivities. (Or god forbid worse, she does) Not only that but you block him on everything and he takes the time to find the one obscure thing you haven't just to continue sending messages even though you've demonstrated clearly you don't want to talk to him. All I will say is as bold as folks like him tend to be with their manipulation they are also blind to anything outside of what they want. Don't delete any of his messages just in case and if he doesn't want to take the hint to fuck off this time you will have the proof you might need to go the legal route if it comes to that. Block him and stay safe, also share what's up with someone close to you just in case. (Not saying it will but better safe then sorry) Come what may YOU aren't responsible for HIM, only for yourself. Sorry for the wall of text btw, take care of yourself.