Why not consider a woman who has had her kids, her husband, her house etc and wants to be more independant.
Just re-read your post...
Do you see many married women in the Poly world that re seeking just a boyfriend?
I am not at all opposed to that situation, but I guess where I have seen that situation is where the wife is bored and cheats.
I'm not cool with that. But would be fine if her husband was aware of everything.