You know, people do things for different reasons. She could be going through some stuff, who really knows? Communication is key. Try to talk to her again, and make sure you're not forcing her to do anything,. just ask if anything is going on or just come out and say it "Do you still find me attractive?". Just try one more time... I know people are saying she's not into you anymore but it doesn't hurt to try one more time. It sounds more like a control issue, not an attractive issue. If she's saying stuff like she'll do it when she wants to, etc. She could be having a bad few weeks, not feeling very "turned on", taking it out on you, really anything. Who knows though. That's just the feeling I get .But i don't even know you guys! I would just try one more time to find out. pay attention to her other actions. besides sex, are you guys still having fun? does she still kiss you? Etc.. Lemme know how it goes. this is just how I see it. I know everyone else is saying different but hey, u never know
If you love her it's worth it, if not move on and find someone else to have sex with...