from one male to another, time to move on. she sound like a cold fish. bed has gone cold. time to move on to a women who will love you for who you are.
Could be that she just doesn't like sex(unlikely):could be that she prefers a woman's touch: could be that she's use to much bigger dicks and just wouldn't tell you: finally could be something is medically wrong with her. In any event,yes,move on,there are plenty of women looking for a man!
Doesn't sound like you did a lot to talk to her and understand where her irritation was coming from? So you enjoyed the sex, but she didn't - most men wouldn't need to have a sexual therapist to take the hint to change their approach a bit. You maybe should have taken the trouble to find out what turns her on.
By the way, did you go down on her or masturbate her at all? Fucking's not the only element of sex.