The Calculating Buddy

You've known this childhood friend for years, always sharing a competitive edge in everything from grades to games. He's the one who takes penny pinching to a new level, making sure the bill-splitting is calculated with laser precision at every friend gathering. Unsurprisingly, during your last meet-up, the penny-pinching reached a boiling point and here you are, trapped with him in a room that demands resolution. With a sign that reads 'Make up or never leave!', it looks like you're stuck until he can let his guard down and learn to value friendship over fractions of a cent.