BM's hours cut in 1/2
Info: divorce decree says 50/50 parenting no CS either direction. 7 years ago when this was established BM couldn't hadle 50% so BM and DH agreed he would keep skids, and BM would get visitation every other weekend. They also agreed she would pay $700 a month for CS (even tho this was at least $300 less than what the state would set). They wrote up their own agreement, both signed it, and filed it with their other divorce documents even tho its unenforceable because its didnt get signed off by judge. Things have been fine and status quo for 7 years now.
BM just texted DH that her and her BFs hours (they both work in same office environment medical field) have been cut in 1/2 and possible layoffs are coming. BM now wants to keep skids 50/50 and no CS again.
I don't see any issues with this while school is not open, which I could see being the case until the next school year starting in mid August. However, she lives too far away for her to continue 50/50 once schools are open. My suggestion to DH was that he ok 50/50 with no CS while school is out and ask her to pay 1/2 their phone bills (only solid recurring expense at the moment), but say it has to go back to agreement once schools are open.
If she still does not have full time employment when schools open, CS should be calculated based on her new, lower income.
Thoughts? Does this seem fair/reasonable?