My best friend's son is gay and now has a Brazilian husband. We didn't attend the wedding as it was in New Zealand where they were living at the time, but they have now moved to England to be close to my friend whose husband died a couple of years ago.
I knew and loved her son before he went to NZ, and he has now brought immense joy to our lives with his lovely husband. They are so kind, loving and delightful; they insist we are family, not just friends, and we in turn adore them.
So if you are lucky enough to be invited to a gay wedding, do go - I'm sure you won't regret it.