I think you have answered lots of your own questions.

You are rather submissive to her. She wants control and you are giving it to her. If that's what you want, then that's just fine.

I believe that what has happened will happen a few more times. And I really don't know if you have the strength to stay away.

Don't forget that people who enjoy control cannot stand to feel rejected, so if you appear to be strong, she will work that much harder to get you back. Once back with her, she will treat you badly.

I hope I don't come off as being harsh. And I hope you do what is good for you and not what feels the best.