<human>: Give me a shortened version of the text

My girlfriend and I have been dating for over 3 years (we are both in our late teens), and I don't feel like she is meeting my sexual needs. We have sex about once or twice a week, with a "job" or so thrown in to hold me over. She has never initiated any of these behaviors, and I feel like I am the only one who needs sex. When asked about it she gets very defensive (as she does about all things), saying that it's "always problems with her" and such, but says she does enjoy having sex with me.

I would love to have sex more often, and when I tell her about it she says she has too much to do. I have plenty of things to do as well, but I make time to help her with homework, rub her back, and help her with various errands that I don't necessarily get any benefit out of.

So my question is, am I being unfair? Or is my girlfriend being unfair?

Any advice for where our relationship needs to go?

Thanks a bunch!
<bot>: Girlfriend wants sex less than me, and I make time for her stuff. Am I being unfair if I ask her to step it up a notch?