I think its un poco mas complicado than that

Dump him, simple.

I've read multiple posts about your relationship here, and I really think you need to do some re-evaluating.

1.) If you're in a relationship with someone, you and that person should be devoted to each other. Having a relationship with someone else shouldn't even be mentioned in such a way as you described above.
2.) As I said in another post, please describe your definition of the word, 'love.' If there's one thing that aggrivates me, it's seeing teenagers constantly say they are 'in love' when half of them have just never had a good relationship before and think being remotely attracted to someone is 'love.'
3.) Describe why you 'love' this person according to your definition for number 2.
4.) People who associate everything with physical contact are some of the worst people you could ever date. I'd get out of that. Fast.

He seems like a crummy boyfriend if you ask me...

I can relate to your problem there. I've got the same feelin that my man was cheatin on me, too. But when I confronted him, he told me he wouldn't do something like that behind my back, & if he did he would tell me before anyone else told me different. I think you could do the same. You never know...

I would say that you need to go and talk to him. Ask him if he is really cheating on you. If you have been together for a while, you can tell if he is lying or not. Tell him that you love being with him, but your not ready to have sex with him. Ask him how he feels about you. Talk to him, I think that it's the best thing to do. Try it and see. He he loves you the way you love him, he will tell you the truth.