I fully agree with Labug here, don't say anything. Actions speak loud and words mean nothing. As Mach1 said in the past (paraphrasing), you can't talk your way out of an issue caused by your actions. If/ when you talk just listen and validate. SHOW her you understand and SHOW her you won't get angry no matter what she says or does. SHOW her you respect her boundaries.
Speaking of boundaries... The boundaries you set are for you to protect you. They aren't to save the M, or stop an arguement, or help get along better, oranything like that. Yes it would be nice if those things happened but remember they are for YOU. Other thing on boundaries is you have to strictly enforce them so choose yours carefully. If it's something you want want to or are able to enforce then no point bringing it up. BTW -I also have control issues and read that book and it helped. Another thing that helped is when I was asked why I try to control things? What am I afraid of if I'm not in control? Think about those questions for you. Why do you try to manage every situation? Dig deep
Personality is who the world sees, character is who you are