How do you handle dating a football fanatic?

I mean he loves to PLAY football, WATCH football, TALK ABOUT football. He and his friends are fiends. FIENDS I tell ya. They even play Madden when no game is on. They argue about ancient plays and which coach is gonna go next. I roll my eyes constantly but I just bring out more beer and throw it in the ice chest they have in the middle of the room and put more food on the table that is right next to it, then I disappear.
WTF is it about football that makes men so crazy? The screaming, raucous laughter, the yelling, the gloating. Is this some ancient male war ritual transmuted to apply to televised football games?