How old is your relationship? A couple of years? I'm 59 moron.<quoted text>
Don't know about the UK, but in the US, people are promised equal protection under the law. Yes, even, gasp, gay people.
I've never been married, neither have you. You've never been laid.
And my relationship is probably older than you are.
The constitution is changed on based on the people. The people decide how the fairness works.