Girlfriend
Ok so my girl isn't an arrogant HB10, she's very down to earth. But she's still quite a firecracker. She has the "short girl syndrome" as I call it lol... which makes them really stubborn and feisty (yeah you know what that means

) She's naturally horny and playful. She's also shy at times (the kind of shyness that makes her speechless and smile uncontrollably).
Situation
She's relatively new as a girlfriend. We keep pushing things farther and farther physically every time we see each other. No sex yet, but there's been fingering, handjob, tit sucking, ect. She's a virgin (yes a serious shocker), but just barely... cuz she's already done everything else. She had a boyfriend for almost 2 years awhile back. She loved him, but he cheated. She is obviously a little attached to him still, ect. You guys get it... the typical cheating story. But now she's fallen in love with me and calls me "perfect." She has stripped and masturbated on webcam for me before. We know how to drive each other crazy in ways like that... so this is an INTENSE relationship just from the anticipation alone.
Problem
Ok now the problem... since 2 days ago, something's been different. She hasn't been horny with me. It's weird because it started right after the last time I saw her. Yeah, there were FIREWORKS of desire the last time I saw her. It's one of those occasions where you're both worn out and sore as hell afterward lol. So then when I talked to her the next night over webcam, she wouldn't strip for me or get horny. First she blamed shyness, and then soreness (cuz she was super sore down there), and then she blamed it on "something wrong with her mind." And when I withdrew some attention, she got mad and felt like she was screwing things up. She hates to see me disappointed, but she would never tell my why she didn't strip for me. She got really annoyed, and I eventually had to change the entire subject and put both of us in a better mood again. Cuz when she gets in a pissy mood, it's NOT an easy thing to deal with (compliments of the short girl syndrome lol).
Questions
So what's up with this guys? Does it sound like she was really just sore? Or is there a loss of attraction here? Or maybe I should've heated her up more? lol... Any input would be appreciated, thanks!
P.S. None of these problems has anything to do with her periods.