tbh if their instinct is to cheat on their spouse to save their relationship they shouldn't be considering polyamory, that just gives them more people to be shitty to https://twitter.com/Smatterbrain/status/1331314016032092160

they COULD be better suited for a polyamorous relationship, sure, but they need to address that impulse to be deceitful first before they try to enter a relationship with anyone else

i severely doubt op of this thread things polyamory is a magical fix but it is something that needs to be said. if you're not being a good partner in a monogamous relationship you aren't magically going to become one in a polyamorous one.