Does this guy like me or is he using me for sex?

I have been seeing this guy for about 8 months (although I only see him about once a week because we both work a lot). We have been sleeping together for that whole time. I really like him, and I want a relationship with him. I don't want to tell him how...

I feel about him because after 8 months of sleeping together and not going much further I'm pretty sure he just wants sex, but he is really such a sweet guy and all his friends say that he really likes me but he is way too shy to say anything.

What do you guys think is more likely to be the truth?

A) He has feelings for me but he is too shy to say anything (just like I'm too shy to say anything to him) or

B) After 8 months, its pretty obvious he only wants sex and this isn't going anywhere and I'm wasting my time, or

C) Some other explaination - please share it with me!

B.!! Nothing more than friends with benefits!!

How can you call yourself, and him shy when your having sex? Thats NOT a shy move!

Why buy the cow when you can get the milk for free.

O my goodness im having this same problems but I confronted him and said why do you continue to mess around with me? I want something real and he just said sex really.. We been together for a year now and he had feelings at first but now he just wants sex. He might be a sweet and nice guy but if you ask him he is just going to tell you what you want to hear for right now until he works up the nerves to tell you what he really wants.. The answer is B.. I really like the guy I am messing around with but he doesnt want anything real so I just be with him most of the time and we let it be known that im the only girl he sleeps with and he is the only guy I sleep with and I ask him for money if I need it and thats it. So we basically are like girlfriend and boyfriend without the title.

Jeezus christ girl.
COMMUNICATE. You can NOT ask us what he thinks or feels.
Open you god damn mouth and talk to him.