While you can love somebody, if it isn't working out, you have to let it go. It's painful, it's difficult, and it's alot easier when they are doing the dumping. He was the ones that lost that feeling first (and disrespected you by cheating) and let it die when they weren't being honest about how they felt (lacking the communication). Do you want to be just friends with somebody like that after everything you have gone through? Does he even realize what he has done and what he is currently doing to you by being friends? I don't think so. Whether he loves you or not is irrelevant. He is bringing you so much pain and if you are thinking about yourself in this, you would want to remove yourself from this situation so the healing can begin. If he thinks this kind of behavior is acceptable, I'd like to see him really lose something meaningful to him and get completely dropped on his ass. What a wake up call that would be.
You can't make yourself stop thinking about him. You know he means alot to you. You have to do your best though to take him out of your life so you can heal and be the happy person you once were so you can be happy with somebody else. Please cut contact with him (no phone calls, emails, texts), and if he keeps trying, keep reminding him that you need to be on your own and need space without his interference. Don't be guilted by the friend thing. Don't look at his facebook. Put everything you have of you two away and out of sight. Get out and try to do things with your friends, (as shitty a mood as you will be in) and don't sit around sulking about him. There is alot to do out there and don't let life pass you by while you wallow in despair. It's not easy but it will be much easier on you if you make the best possible effort you can to keep busy and do different things and keep your mind occupied.
Waking up next to a beautiful girl,
Step outside and say hello to my beautiful world.