What seriously? Most abusers don't miraculously stop being abusers. Most don't see why they would need to change in the first place until it's too late and that's still a long process.

I play a character who takes a lot of abuse and still sees the good in people, so in this situation I'd love for them to either accept the person isn't going to change and stand up to them or keep trying until it gets to a point of no return and need to be told to back out themselves for their own health/stability.