That seems to be the general trend.
My nail guy lost his "husband" (California allows same-sex "marriage.") a few months ago. They had been a couple for almost four decades and "married" when California changed its laws about same sex "marriage."
They were an anomaly.
You are correct about homosexual relationships, I think.
I have read story after story about homosexuals who had been “together” for decades. Then this “marriage” thing came out and they jumped right on it. Some of them were divorced in six months or less. Some could not even get a divorce because they had moved to a state that did not have gay marriage to start with.
What do you expect on a relationship built on lust?