Well it could mean one of two things, grasshopper.
1. You're *CENSORED* up right now and need to find out what exactly it is that you did wrong. I've been there. You should probably ask her what it is that pissed her off to the point that she is withholding sex from you. Maybe it makes sense. Maybe it doesn't. But whatever it is, she's upset about something. Not that you're going to get loving back quickly or anything, but you can work yourself back into it.
Or...
2. It's time to close the piano and turn off the lights. She's done with you. For most women, sex is an emotional thing so if they are emotionally tied to and invested in you, they will still smang you. If a woman no longer desires sex with you since they know that's how WE connect, well, she's gone like an NSync song. Time to look for a new home, doggy.
There could be other reasons too. When I went on a new depression medication, my sex drive plummeted, to my boyfriend's dismay. I switched and it's back. I also want nothing to do with sex when I'm depressed which, depending on my stress level, can be often.
All these are unrelated to what my boyfriend has or hasn't done lately, so it might not necessarily be his fault. Just talk to her and find out.
#3 (tied to #2)....she found out you're "smanging" someone else, or want to. Betrayal is a huge sexual turn off.
Since we are making snap judgments and promoting negative gender stereotypes, maybe she's the one smanging someone else.
Ahahahah. Good one, Mr. X. And well, not good for the asker.
depending on how long its been, could be a yeast infection even. maybe shes too embarrassed to tell you? or an infection of another type has her on Anti-biotics and she knows they mess with birth control.
Talk to your girlfriend, that's the only way you're going to find out.
This, 1 million times!!! Wish I could give a +1,000,000 here!
I had a period with my girlfriend not too long ago where her normally hyper-speed sex drive dropped to zero. She even got turned off by the idea of sex and just wasn't into it.
It wasn't me though, it was just other stuff. She had a LOT of crap going on at the time and was stressed out beyond belief so her mind just wasn't there and she didnt want it.
You know how we kept everything good? When I noticed something was up I talked to her about it immediatly so it was all good. Don't let in linger, if something is up get it out there and you'll both feel better.