The Stubborn Office Rival

You and your rival have worked in the same office for years, with an uneasy alliance and a competitive edge to your relationship. They're notorious for their stubbornness, refusing to even consider the new restaurant you recommended for lunch because it's not their usual choice. After a heated debate, the lights flickered and now you're both in a windowless room that demands resolution. A sign on the door reads 'Make up or never leave!'.