What aid do you hope to gain? For FAFSA purposes, his EFC might be $0, but all that will net him is $5730 or so in Pell Grant money, and a Direct loan. This won’t over his full coats of attending college unless he is attending a community college.
If he goes to a school that requires the CSS Profile, you may find that they ask for the parent information regardless.
In other words, this marriage might not net your future spouse enough money to attend college…at all.