The last time a gay couple were in my home, (yes, honestly, they were,) I found them rather shy, very polite, and I found an element of novelty in the fact that although I have been in the company of gay people, individuals that is, this was the first time I had been in the company of a committed gay couple who obviously had a great affection for each other.
I was welcoming and polite, made conversation and tried to make them feel relaxed in my company. Why not? There's no excuse for bad manners is there?
But there relationship is there business, not mine. My relationship is my business, not theirs. None of us discussed sex or sexual orientation, probably something more mundane, I don't remember.
But I still think that homosexuality is not normal, and should not be presented as a normal relationship in schools, for example.
Gay people can't help the way they feel, and neither can I. I do not ever try to promote inequality of opportunity to any person, whatever their race, colour creed, gender, or sexual orientation. Well, apart from Chelsea fans that is. I make an exception for them!