***Update***
Well everyone - thanks for all your help and advice!
I'm proud to report that I took all the advice to heart, and after doing quite a bit of research, came to the conclusion that although birth control may be a contributing factor, it certainly wasn't the problem.
I re-assessed our relationship, and tried looking at things from her point of view. I decided that it was likely that lack of communication about the issue was really the problem, so she and I had a chat.
In the beginning, it went as it typically went - and we got to the part where she basically blames herself for not "satisfying me" instead of comforting her and ending the conversation, I basically said "Look honey, I understand how you might be feeling right now, but you need to look past that and we need to get to the heart of the problem. I need you to be completely honest with me, and I with you - no sugar coating allowed."
What it came down to was this: Since she basically felt that anything that we did other than the quick peck or hug would lead to my being frisky and her rejecting me, she would try and avoid rejecting me and only let our contact go that far unless she was willing to go all the way. As a result, there was a barrier between us - we weren't feeling as close as we typically would be simply because of the lack of physical contact. Becaue she didn't feel close enough to me, it certainly played into the reduction in libido - with her libido reduced, it made us have sex less frequently, increasing my frustration... Basically, it was a vicious cycle that just got worse and worse.
After talking it all out, we decided on a couple of courses of action that would get us out of this rut, and have since implemented them. I'm happy to report that a few nights ago we were lying in bed and she basically attacked me because she was so riled up - a situtation that hadn't occured very frequently at all...
So, not only has the frequency of sex increased dramatically (we're talking about once a day now) the quality of sex has increased as well. Our relationship is looking better than ever, and after everything calms down (my life is a bit hectic right now, buying a duplex, moving, putting in 60+ hours in a week at work, ect) I think it's about time to bust out the ole ring that I bought her and propose. Actually, I'm looking for ideas on that as well, so I might ask for a bit more help from you folks.
Well, I suppose that's it for now - thanks again for all your help, I figured I should just let everyone know how things worked out for me
