Hey man checking up,
Just remember it's the standad WAW script. It could be one of two things, she is either baiting you into anger to justify her actions, or she is challenging you to man up.

Whatever it is protect yourself. Expect her to throw a fit. Just tell her:

"you know I don't want this, but if you insist I must do what I view as fair based on my beliefs and the law"

Remember to be strong assertive, and a gentleman. Remove all reasons for her to demonize you.

If she can get herself to stop blaming you for her unhappiness you stand a chance.