When 'yeah, it'll be good' isn't good

“You and your partner are getting ready to leave for a dinner reservation — coats on, keys in hand, a normal Friday night. You mention you're excited about the place you picked, and they say 'yeah, it'll be good' while checking their phone one more time before you head out. The words are fine. But there's a flatness behind them that you recognize, and now you're standing at the door wondering if something happened today that you don't know about yet.”