I would argue that it is equality. “A studyconfirmed earlier research of a divorce or separation rate of cancer patients of 11.6%, similar to the general population, but found the rate jumped to 20.8 percent when the woman was sick versus 2.9% when the man was ill.”

This is just one study but there are others.. Men are seven times more likely to leave their partners when the partner becomes seriously ill. I haven’t seen studies specifically on same sex partners and it seems the research was on hetero couples but it makes one wonder.