Being honest, I withhold judgement.
Because women in a relationship can mean a bunch of different things.
A lot of women who claim lesbian/bi/queer but are sexually attracted to men.
Even the studs. Which is not rare, BTW.
For some women, being in a relationship with another woman is a feminist statement.
It's kind of a thumb of the nose to men like, "We don't need you."
Some go even further and purport the myth that only a woman can truly meet a woman's needs.
When you add an agenda to your relationship, it taints the purity, IMO
But that's just one of many scenarios.
There's a gang of different reason why women would be together besides sexual orientation and that's what makes it a complex issue.