Don't stay with someone just because you think you can't get someone else. If you do that it's just a matter of time before they dump you or start treating you really badly (which she already is by the sound of it). Unless you're the hunchback of Notre Dame there'll be someone else for you, so keep your dignity intact and don't let yourself be walked all over!
Tell her that what she's doing is upsetting you. If she's so much more interested in the game than in you that she doesn't care about upsetting you, then the writing's on the wall, I'm afraid.
Tell her that what she's doing is upsetting you. If she's so much more interested in the game than in you that she doesn't care about upsetting you, then the writing's on the wall, I'm afraid.