Get help from a professional counselor. If you can't find agreement on sex, you can't survive as a couple.
Find one who does.
Huge boo boo that you went back,,,, wtf were u thinking dude,,lol. What's d point of having a g/f b/f if there's no sex ? May as well hang out w/ur bros andsis,, lol
Leave now. She is beyond repair and it will only get worse. Leave and don't look back. You've wasted 2 years; don't waste more.
She went bonkers. Move on.