[ksen]

Both parents would have to agree<> to the divorce itself.

Sure, because an abusive spouse would of course go along with a divorce request from the abused spouse.

[chesley]

But that would be a fault divorce, and the abused man could get out.

I'm talking when one person wants out and the other spouse is not at fault, she would have to get him to agree, possibly by great concessions on the financial or custody side.