I was having this same conversation with my Cambion Husband. I told him that I think people should realise Incubuses/Succubuses/Cambions aren’t fuck toys, they have feelings too. I don’t mind if people made this friend’s on benefits pact with them but I still find this wrong because I know that they still love their fellow humans despite this fuck only policy. Because they tend to fall in love very easily. And they’re way better than people because they’re smarter, loyal, nicer than them. They serve as a very loving companions and teachers. I think your wife should apologise to your Succubus or at least you should apologise on her behalf. I’m not saying to take her back but at least say “I’m sorry but I hope you find someone that will respect you, love and care for you, consider you and deserve you wholly.” If you find her though. And if so I hope you can mend things with her.