I hope you saved prescription medications, and day care receipts to show your lawyer
But generally speaking courts don’t care why person didn’t work, was she watching kids or was the housewife. Everyone I know who was ordered to pay spousal support (including my own husband paying his ex), alimony was ordered simply because spouse wasn’t working at the time of divorce and some time before. Wasn’t matter why they didn’t work. Or they worked but made significantly less than their spouse
In your case though you are raising a kid (if only one is minor), and if she pays no child support all this time then I don’t see how they could demand you support her too!
I assume she contributes nothing towards raising her kid