Why would she need to hire help? I'm confused... if you have the kids for certain nights, isn't that your deal to manage them, after school care or whatever? Also, isn't your W a SAHM?
Here's a (maybe crazy) idea that a couple of my Ded friends do-- the spouse who has the more flexible schedule picks the kids up from school. In one case, the mom brings the kids to the dad's house (her old house) and usually actually cooks them dinner, he gets home and she goes. In the other case, the dad picks the D up from school, takes her to his house, and the mom swings by and gets her on the way home from work. Maybe something like that would work? It seems like anything you can do to demonstrate you are being cooperative but still holding strong on your desire for more time with your children will be a positive thing, both now and potentially for the D.
Texting back and forth does seem like a difficult way to communicate. Were you guys trying to use email?
Hang in there!
Me (46) H (42) M:14 T:18, D9 & D11 4/19 - 12/19: series of escalating BDs 9/20 - present: R and piecing