Just as an aside HaWho - DNJ's comment reminded me that I believe that your tax code is changing at the end of 2018 where spousal support shifts from being a tax deduction to being taxable.
That could perhaps be used as motivation for the other side to get the deal done sooner rather than later.
With him being the higher earner, the tax implications could be significant not to mention the annoyance to him of "why do I have to pay tax on money I don't get to keep".
On BD H52, W50 T27, M26 S21, D23 BD-9-Mar-16 D-15-Jan-18 Final-19-Apr-18 I am a storyteller. The story may do you no good. But a story is never for the listener. It is always for the one who tells