It's psychological. I just recently got past that. (My husband wasn't "all over me" but I just didn't want sex. Ever.)
You've got to start feeling sexy. Think about things that turn you on. Right now you're feeling negatively towards it because you're annoyed that he keeps coming onto you when "obviously" you don't want it.

When you start feeling this way, remind yourself that it's YOU, and not necessarily him. In a relationship you should want to serve each other. You love him, so even though you're not feeling particularly in the mood, you'll realize once you do it to make him happy... that you don't know why you were so against it before.

This advice is aimed only at this particular situation. I in no way condone people having sex just to make someone else happy. There are a million reasons to walk away from someone when sex is the only way to keep them, but this doesn't sound like that situation. THIS particular time, though, making someone else happy can often make you happy.

Just remember to communicate your likes and dislikes. When he's not rocking your world, he needs to know why, or you'll keep finding reasons to put off sex.

sometimes your birth control can cause your hormone levels to change. This happened to me after changing my birth control. I went to my dr and had a very blunt discussion about it, me not really wanting any or my sex drive being very low. He told me 2 things :    1) it could be the birth control causing problems  or  2) my man needed to be working harder to make me interested in sex. that it had nothing to do with me or my lack of wanting sex, but everything to do with my man figuring "since she wanted it before, she'll want it now" and not taking any extra time to get me ready for sex.

I am just like your guy. My boyfriend is rarely in the mood, whereas I could go anytime. It's very frustrating on the other end too. Feeling like you're a freak and that's all you care about, when really that is not true. When you know they love you and want sex too, but other things get in the way (stress, etc.). It isn't just about the sex - it's the emotional connection, the love you both share for each other, all that jazz. That's what I crave at least.

Have him masturbate for you :D Like instead of you masturbating, have him use his fingers on you. Its sexy and it'll stimulate you. And it's sexy. 

LOL. He's going to cheat.

if he wants it like 5 times a day, then that can get annoying. in the beginning, sex is exciting but after a while, it feels like a chore. I think his tactic of being all over you all the time isn't working. if he wants some, change his tactic to get you in the mood. I'm not telling how. let him figure it out

This is what we call a mother complex, I don't really have enough time to go into it. The end result or true piece of reality. In a marriage it would be totally different but since he is only a BF you really need time apart. Due to time I can't go into great detail but you might be delaying the inevitable. If you’re interested in more detail please feel free to mail me later or visit my blogg site.

If he loves you he will understand. maybe you guys should take some sexual time off... even a few days can make things interesting.

For example:

Try going on dates and doing romantic things for a week. Then maybe you will feel really passionate and "in the mood". Since there has been time off there can be a sexual tension!

eh..I've been through that. I went shopping bought a few pairs of cute undies & lingerie that I thought made me look hot and it helped. Maybe that's just me though..

@superGchik@xanga - i do to.  

There are foods you can eat that can heighten your sex libido. I think one of them being chili peppers?