Two part question here. Any wisdom to offer on (1) navigating my separation process when one spouse has near sided financial concerns and is stalling and (2) navigating negotiations for spousal support.

STBXW worried we can't afford two houses in the short term. This is legitimate if you consider status quo earnings vs expenses but not if you consider savings. We both have plenty of savings, and she has about 6x more than me. Obviously nobody likes to withdrawal from savings but yeah. I just started a full time job 4 months ago that pays well (high 200s) and she makes low 100s working about 2 days a week. She doesn't seem to want to work more than about 2 days per week and I think that's part of why she's stalling. She's agreeing to 50-50 custody. She prefers to keep our shared house (I would like it too but since I'm initiating the divorce I don't want to push on this one) but is worried she won't be able to cover the mortgage and is asking me to make sure she has enough $$. I gently point out that we'll go through mediation, see what the calculators say we owe each other, and figure it out. I've made it clear I'm not interested in trying to go after any of her wealth nor do either of us want a dog fight btwn lawyers. The calculators show that based on current income, I'd owe her about $1200 alimony and $800 child support. I'm open to paying that if she asks for it but Im just baffled by the financial concerns particularly since I'm the one with much less wealth, just happened to start a higher paying job 5 months ago that I work full time at and she doesn't want to work more but could easily earn more than me. Maybe it comes down to a values / ethics question but frustrating bc I just want to freaking separate, tell our kids that we are separating, but need a clear plan for housing first and not making progress. I've proposed working with a mediator and that hasn't gotten anywhere so far.