It's such a stupid argument.
Yeah, I really care but it doesn't bother me when they lose.
That's like saying I really love my wife or girlfriend, but it won't bother me if she walks out on me tomorrow and starts sleeping with one of my co-workers.
You either care a lot and are emotionally invested, or you're not. I'm not going to judge with whichever way you choose, but you can't have it both ways. It is simply not possible to claim that you care about or "love" something, but then act like you don't give a shit when it blows up in your face.
I don't think you have much room calling anyone stupid and then comparing a sports team loss to infidelity. Step back for a second and think about what that says about you.
If no one gave a **** they wouldn't be on a message board talking about it. But Anyone who lets their life get affected by this beyond the usual message board rant, bummed feeling, and angry beer guzzling after a game needs to reevaluate their priorities.