Let's make something clear. Because two gay people want to be married and enjoy the legal benefits of this status, it will not harm me or anyone else in any way. I've yet to see even one arguement that exlpains how this is harmful to anyone. Some people make the religious argument, but last I checked, we're not bound to any religion here in the US.
Get over it grandstanding morons in Washington. Two gay people getting married does not in any way shape or form change the validity or importance of my marriage. It doesn't trivialize my relationship, why do you fear it will do so to yours?
Fuck, spend your time legislating something that might actually help humanity.