I'll repeat what I told you in your duplicate thread:
First: Stop considering yourself some kind of victim because you're not. You volunteered to be in a non-exclusive sexual only relationship with him and you failed to communicate to him that you are the type who has a vagina that you think is directly connected to your heart and you mistake lust for feeeeeeelings of romantic love.
You get closure by telling yourself that it was only sex (which it was) and lust and that you are going to give your actual heart (not your veejayjay) to a guy in your future and that you'll not have sex with him until you've been shown in actions that he actually values you and is interested in more then sex. If you don't want to be a fvck buddy then DON'T BE A **** BUDDY.
(I swear to got that I don't know how hookers stay in business anymore when so many chicas are giving it away without any commitment or being shown they are valued)
As for this guy...you'd do well to move out or if you can't/won't do that for yourself then buy a good set of head phones and make sure you have them on when she's over. Get busy with your life and doing things with your friends and family and your schooling or career so that you have a real life going for yourself as a single. Then you'll not be so quick to agree to be with chumps who just want a leg over.
“The willingness to accept responsibility for one’s own life is the source from which self-respect springs.” ~Joan Didion