It's just a sad story. Knowing the parties involved, it baffles me. Do help if you can. What's happening is wrong on so many dimensions. I hope that her husband and his other partner come to see more clearly and lose the need to hurt, control and shame.
Male, Straight, Poly
“Instead of getting better and better at avoiding, learn to accept the present moment as if you had invited it. And work with it instead of against it. And making it your ally rather than your enemy.”