Relationship constitutional republic: people in it have systemically different levels of power and decision-making influence

Glucose guardian/splenda spender/sugar daddy

Traditional marriage of two cis straight White Christian vanilla people where the man "leads" and is 0-4 years older than the woman, with 2.5 kids (not counting any LGBTQIA+ ones) and a McMansion with 2.5 SUVs/trucks

liking/reacting to even their most meaningless posts and comments on social media and prediction markets

Partners in crime, like Caroline Ellison and Sam Bankman-Fried

One with an IPO (Intimate Partnership Offer)

I like big butts and I cannot tell the truth, how will you escape our dungeon

"I'll never admit to anyone that we met on Tinder"

Single by choice (except it's other people's choice)

Options are not mutually exclusive.  More options can be added.

Unranked so it doesn't count for leagues.