As Sideblinded and Gaylegg both said; communicate, communicate, communicate. Work on those bonds outside the bedroom; play dates to the zoo, making her a romantic meal, giving her a foot rub, making her dance with you to the show tunes at the grocery store ... Ooo, I gotta do that one myself.
And work out a compromise. You might want it every moment and she's only a once a month girl. So start with every two weeks? Or something like that.
The relationship has to be a give and take for both of you. Sex is a minor part of a relationship when it's good, but it's a very big part when it's not good. So you both need to work with each other so you can give each other the most you can.