You have a lot of answers in front of you. If you are hoping to find this information disputed you won't. You can start applying what you are learning to understanding Her problem. She is into something she doesn't understand and didn't ask for, with no control over her mind.
What books have you read on MLC? She had plenty of triggers to set this off and you my friend, were not it. You can't take credit for something this powerful. Only she can decide to see a C for herself, and she needs to. Read some of the posts in the MLC forum here.
If you want to read a book a C gave a woman in MLC, InTheMeantime by Vanzant may be enlightening to you. You will see a lot of background for her emotional turmoil and what is driving her to do what she does. It does not go into how you can stop her or fix her, because you can't. If she doesn't go all the way through this life transition she will neve become "whole" with moving forward in life.