I fired my brain, a satirical tale

A(i) satirical tale I was coming from a barbecue with a friend and while he was driving he started to talk about a relationship's PURPOSE. Oh! Big word. He asked me what was my relationship PURPOSE because I should have a clear one. It's like a business, he said. My brain was circling a little. My friend was not asking about life themes such as health or happiness. "So what is your relationship…