Oh, and refresh my memory, how does a believing Catholic support gay marriage again?
I guess it depends how brainwashed a Catholic you are. The Catholic Church itself supports/accepts a lot of things they're allegedly against if you have the money to pay for it. I found out first hand when I tried to get my first marriage annulled.
I should make it clear that I'm not attacking Catholics or the Catholic church. As someone who is religious, I feel a certain kinship to anyone of faith. But I'm continually bewildered by so many self-professed Catholics who seem to not take their Church or it's leadership seriously, which in turn leads to them being what has become known as "Cafeteria Catholics."