Since she is not living with him, perhaps scheduling two days a week for him to stay with her will feel more "even" from her perspective. Let her have him on her own turf and she may not feel the need to assert herself so much on his and yours.
The world opens up... when you do.
Oh, oh, can't you see? Love is the drug for me. ~Bryan Ferry
"Love is that condition in which another person's happiness is essential to your own." ~Robert Heinlein