There is nothing wrong with no longer supporting her financially while she lives out of the home. Her choice was to move out and I don't see why you should be expected to subsidize her alternative lifestyle. Is she employed? My Wh was previously thinking of renting an apartment and never thought to ask me for financial support, that is preposterous.
If she wants D then she can start to live the life of a divorcee. Meanwhile continue to validate but keep firm, kind boundaries.
M 10yrs T 13yrs BD #1Oct 2015-PA between WAH and COW BD #2 April 2016-WH resumed PA, she broke it off Jan 2 2017 WH says he wants divorce April '17-Letting go 2018 D busted DD8, DS6, DS3