Doesn't this leak too much information if both parties aren't being honest? E.g. you could just submit spouse + every likely hashtag--#breakup, #haveKids, etc.--and then see what ends up matching.
And note that the other party can check if you sent those other thoughts out if they wanted, so it's socially risky for you to do so ("Ew what a creep, he blasted out all four bases!"). This stuff is fun to think about.