You separate sex from love by refraining from doing bonding rituals with this man.
That means"
> You do not hang out. You screw.
> You do not sleep in one anothers bed overnight... EVER.
> You do not cuddle after your sex sessions for more than a min or two. Until you get your breath back.
> You do not talk about personal things. You keep your conversation about the weather, politics, what you saw happening on the subway that morning.
> You do not expect him nor should you phone afterwards to see how they are.
> You never give gifts to one another or acknowledge any holidays/birthdays/special occassions.
Theres is an email floating around about Booty Call Rules that I got most of those recommendations from. They all make perfect sense on how to NOT bond with your sex partner. There are more rules but I can't remember all of them. Just don't be doing bf/gf things with him that will make you become vulnerable to him. One has to become vulnerable to someone in order to fall in love with them so don't do things that lead to you being emotionally vulnerable. No bonding rituals .. zero!
“The willingness to accept responsibility for one’s own life is the source from which self-respect springs.” ~Joan Didion