Except it wasn't a god awful Football game, it was a great one. Had it been a terrible game, I would be upset. But as a fan of the game, I can recognize good losses and solid games and, while still upset with the outcome, I can appreciate a good game for what it is and be entertained. That's the whole purpose of being a spectator
If you maintain your mindset, you are only gambling your happiness every time you watch any game.
Also this "The only thing that matters is whether you win or lose" thinking is junk, sports aren't black and white like that and direct winning isn't the only metric to measure progress. It's ok to find a silver lining in a loss