I assume you red these but will post it for you to have. Any updates?
I did similar things back in Nov/Dec when relationship started to hit rocky part... along with starting to work out and increase kid involvement, go out with friends. If anything I think it did not help but contributed... made it easier to walk away.
In Jan/Feb when she asked for separation I gave her more space and she was going around commenting "see we are already doing better as just friends instead of in a relationship"
Did the begging thing last week.
I've been mostly following the rules this week but she hasn't reacted.