Yes, I will let him come and if he does, my conditions will be non negociable. Of course, I might not be available anymore when he does. I know what I expect from a relationship. I have been patient, understanding. It is not my fault if he doesn't know what he wants. My ex-boyfriend grew up over night when I left him. Too bad for him it was too late.
You are right, this one got used to playing when communicating with women (with men probably too). His only relationship, as far as I know, is with his daughter he is devoted to (that's def. a good point) and his buddies. Nothing to encourage you to grow up !
I am not sure there's much I can do anyway. Even avoiding him is difficult. I tried to schedule my meetings at his office when he wasn't working, but he turned up under some false pretense. So the best option is to let him come, tell him I am not interested in friendship or flirting (brake the routine), and if he is interested, telll him exactly what I expect (the contract if you want). Take it or leave it. That way, if it doesn't work out, I will have some closure. If it does work out, great.