its funny you should lmention that, i had a similar problem with my ex...notice, my "EX". Although its a 10 minute walk to her house, the point is she begged me to come over, this was at 8...so already i'm like "wtf?". After that, one little peck on the lips, and then, get this - she slept for four hours, and i had to wait in her room the entire time...playing on addictinggames.com
. and then i figured what was actually going on, she WANTED me to break up with her. Girls do this quite often, and i have a friend who's doing it to her bf right now. although i can't guarantee anything, you seem to be in a similar predicament. the best thing is to find out from her friends whats going on, because she just WON"T tell you some things. Although a lot of you probably will critisize me for saying to go to his gf's frinds, you know its true, its the fastest and most efficient way to find out. theres a good chance she wants to break up with you, but simply doesn't want to say it herself. good luck man.