It's doomed. That's your truth. And the reasons it's doomed are plentiful, starting with the fact that you're a boring, inadequate man who can't pleasure her properly. She thought she could change you. Perhaps there was something that attracted her to you in the beginning, but whatever that was isn't good enough. She's done with you. She's so done with you, in fact, that she has another man balls deep inside her as we speak and she is shouting out in orgasmic bliss. I bet that makes you feel inferior... and to that I say, GOOD. You aren't meant to be anyone's boyfriend. You're meant to be a dumb jerkaholic who's addicted to humiliation porn. This relationship was never meant to be. Let her go.