I found some spirit of competition as I entered a relationship. Honestly, I probably would have trouble forcing myself to go running every day, but now there's, like, no choice - can't lose to her, gotta go.  I think fats kinda feel the same thing, but instead of embracing the competition, they run waddle away from it. They surrender before even trying, and it makes them feel shit about themselves. That's why they choose to be with people who are as weak as they are.