W can't break EA - not sure how to handle it

[Puppy Dog Tails]

And why can't a good MC tell her that?

If you know ahead of time that that will be the MC's position, then I wouldn't be opposed to that. But I'd be damned sure of it going in.

What else would a pro-marriage marriage counselor say?

You'd be surprised. Many supposedly "pro-marriage" counselors do more to help the wayward spouse "self-actualize" or "find themselves" than they do to actually try to support the marriage.

Good ones are few and far between.

Puppy