I suggest you take a good look at the financial picture and discuss this with your spouse.
As a CFI you’ll make around $20-$30hr net.
Im assuming you’re around 250-300hrs so you’ll need 1200-1300 hrs for your ATP in order to move forward.
Call that $24k-$36k net income as a CFI.
If you’re a part time CFI and you fly 300/year that’s 4 years to ATP and between $6k-$8k/year income.
If your family budget is $50k/year (just picked a random number) over 4 years is $200k and being a CFI brings in $36k.
Thats $164k difference.
Obviously adjust the numbers according to your situation but you need a ton of savings to bridge that gap.
Add two years at the Regionals with less than stellar pay and you’re looking at a $200k gap
You have the savings to bridge that gap?
Im gonna go and stick my foot in my mouth and say that your spouse is supportive because she probably does not know the entire financial picture.