It's far better that LTB gets doled out more frequently than some people might like - and the odd useless lump suddenly finds himself alone - than even one woman continues to live in the sort of misery that I, and other women in healthy relationships, would find intolerable.
Good point.
The thing that many women find hardest to understand when they are in the thick of it, is that sometimes asking him to leave is the only way to save the relationship.
Relationships only work if boundaries are respected. Once those boundaries are crossed, there has to be some consequence. Otherwise there is no respect and also loss of trust which can be very hard to come back from.
A very firm stance is what is needed. This is my limit. I have stated it. You have crossed it. You need to leave.
The woman then has time to think very carefully about what she wants/needs and whether she wants to put herself back into that very vulnerable position of trusting someone who has broken their trust.
He gets one invaluable chance to see exactly what he is risking losing. If he really cares and wants to make it work, he will do absolutely everything that he needs to do. He will arrange his own counselling, change his own behaviour, make his own appointment with the gp.
Whatever changes are necessary his will make them himself, off his own back, because he wants to be with her and understands that she is not going to put up with him being selfish, lazy, unreasonable or in any way abusive.
If he doesn't make the effort, then she knows that he is never going to change.
If there is aggression at all in the relationship, the separation will give her time to understand what has been happening and that she does not have to put up with it. Often, it's the fear of separation that keeps the woman in an unhappy relationship, so asking him to leave, even temporarily, takes away some of that fear because the initial impact of him going is already taken care of. And, of course, she is safe from harm.
And it works either way of course, male or female.