
Idk why so many people are pissed about the prince with the retainer. Personally, I think that I can only ever be in a monogamous relationship because I tend to get crazy jealous, but not all people are that way. Even in our society there's things like swinging and polyamory(which isn't even illegal) and just because some people wouldn't personally be able to be in those kind of relationships, doesn't mean nobody can. In the case here, it's obvious that our MC is encouraging his relationship with his retainer, and his retainer obviously doesn't care about the prince being married to our MC, so what's the harm?
I'm the future if the MC makes it clear that she doesn't want the prince to sleep with anyone other than her, and he still does it, then I would be completely disgusted with the prince. But at this point, it doesn't look like any party in the relationship has a problem with the relationship dynamic, so ¯(°_o)/¯
I'm more annoyed by how he more or less forces himself on her (does he not understand the concept of no?) than the other thing... I don't know if it's at the level of marital rape, but it's pretty off putting and leaves a very bad taste when I'm reading it

I think the main problem lies in the fact that, although the two guys are fine with it, she was never consulted on the topic. Nobody told her before the wedding: "Hey, this is going to be a three-way deal, you ok with that?" Polygamy is fine when all the people involved know and understand the situation beforehand, but it wasn't like that here. And sure, she's a fujoshi and that might motivate her to kind of accept the situation more easily, but none of the guys knew that before they met her, and considering that they didn't come up and openly said it since the beginning I'm thinking polygamy is not a common or accepted concept in this society, so they made the conscious decision to deceive an innocent person who might never have found out or accepted their circumstances just in order to continue their relationship. That is cheating on my book, not polygamy or polyamorous.
It's confirmed - I'm definitely gay.
Welcome to the club (~‾▿‾)~
We all gay for paulina