Towards the end of the Kyle Rayner run of Green Lantern, his ring ended up going to his gay friend. I was shocked. In the next issue there wasnt even a mention of this, like it never happended. Next thing you know the series ends.
I thought that might be what longtermmemmory was talking about, but that's not quite what happened.
No "incarnation" of Green Lantern was never gay. Kyle might have given a ring to his gay friend, but plenty of Lanterns have given rings to their friends. Not the same thing at all.
As for the plotline being abandoned, they did that with a lot of Kyle's plotlines. His book floundered for years before they cancelled it.
But then GOP took over and they couldn't be married.