How do I know if this relationship is going somewhere?

Question

Been seeing someone for 7 months now and he couldn't keep his hands off me for the first 4. I see him everyday and he now sleeps over, most of the time on my couch!
We seem to never have sex anymore, and I don't know how to approach the subject with him or do I assume he is no longer interested? We had an agrument on Thanksgiving and he stayed away for a week, and then when we talked he admitted he had "some love for me", but could not "fall in love" with me due to the arguements which he always walks away from and stays gone for a week at a time without even calling or accepting my calls.
He does work long hours, and this could be the reason of "lack of sex", but yet I can't help thinking we are going backwards verses forward in our relationship.
I have recently looked up a person I had a relationship with before him and am really thinking of hooking up with this guy just for the sex, although I know what that will do to my current situation if found out.
Help!

Answer 1

Might as well, this guys using a crutch some where, if he isn't screwing someone else, he ether has a drug addiction or a hobby of some kind thats taking up his time and energy. I'd blame the job, but that doesn't quite work UNLESS he is working more then 40hrs a week. That all aside, he is cheating you out of the relaitnoship by walking away from the arugments, that shows that he pretty much doesn't care. O he loves you, just not enough to make the strives to make the relationship work, shoot why should he? You don't have enough self-worth to know what the heck your worth so he gets to pretty much use you because your blind to how much he is neglecting you. So you get an easy out on feeling that your not alone (you've got a boyfriend). And he gets an easy way out on grow-up (he can always use you when ever he wants, for what ever he wants. So your both pretty bad for each other, your best bet is to leave, no offense, just no other choice really, the communcation has ended, and so has the desire to do anything about it.... sorry...