My experience with my ex of 11 years is that 2 years into our relationship he wanted to have sex with another woman he had met. I agrees and this started our poly life. BUT I wasn't allowed to date men. I also was not allowed to have a girlfriend on my own. So he could date, I couldnt unless I could find someone for a triad (not something I wanted) years of begging for a girlfriendand some.affairs on the aide I.finally had enough sneaking to get what I wanted or having constant fights about it.
For me the desire to be free was more important
Than my marriage with him.
Sue, hinge in a vee with Nate (Polysexual) and Sam (monogamous)