First comes love<quoted text>
We don't, or at least I don't.
If my boyfriend happens to come into the conversation, I don't start off by "I'm gay," I start off by "my boyfriend blah blah blah."
It's all about nonchalance because that's how it should be.
People shouldn't have to say they're gay but some people feel the need to.
My point is that not many outright say it, most people just talk about it and let people figure it out by themselves.
Then comes marriage
But I doubt there will be a baby in a baby carriage, in your case.
All the best, anyway :D