No one is really shocked at the demise of this marriage.
Actually, it seems that it wasn’t really much of a marriage to begin with!
[The Wife’s Boss] set it up as a business arrangement from the beginning.
She didn’t want questions about a lesbian working so closely with her, and [The Wife] wanted a baby (but not out of wedlock) so she encouraged [The Wife] to “marry” [The Husband] even though everybody knew what a dog he was.
They are all ambitious, so at first the arrangement worked for everybody.
They never slept in the same room and they never had sex, though, so I’m not really sure how the child/ren came about.