Please don't reconsider getting with this woman. She seems to treat you as labor, not as a person with their own ideas. She guilted you for doing basic human things like expressing yourself and your own opinions. Don't ever date someone who doesn't like to see you be excited and enjoy yourself. Don't ever date anyone who puts you down.

Ask yourself, would you tolerate this behavior if she wasn't disabled? She seems (maybe even unintentionally) to be using guilt as a weapon against you. And if you got back together with her because of guilt, is that really healthy for either one of you?

Again, please do NOT get back together with this woman.

Also, my money is on her cheating on you with roomie. Might want to get a STI test, just saying.