I am in a similar situation... though reversed. I am the one who wants sex all the time and he is the one with the decreased sex drive. When we first started dating, it was everyday, multiple times a day and it was great. Now, the quality is still just as amazing... just not as often as I would like. There is no way that I want our sex life to be what it was in the beginning (we just don't have the time!), but I do wish that it would pick up a bit. It makes me feel unwanted and unattractive that he does not have a "typical guy" sex drive when it comes to me (I tend to think that I'm not turning him on or whatever, though he vehemently denies that), but we deal with it the best we can, ie: I just accept the fact that I'm not gonna get it as often as I want it.
