[The Fifth Horseman]

There's a reason for the regulations that forbid support workers from relationships with their charges, and it's meant for both sides' safety.

Your ex is a different matter, and the problem isn't as much with her as with you.
From your description, her behavior was abusive, but the overall impression I get is that she didn't want to just tell you "no" and everything after that was intended to make you decide to break up with her and leave her alone. Likely that was what her (step?)father referred to when he asked if you were deaf and blind - as in, whether you were actually paying any attention to what was happening around you.