Interesting stuff, but I'm not sure you can just swap roles and it works. The motivations are more complex.
A man wants his woman to be faithful for a basic biological imperative -- to guarantee the paternity of children. It's the way he knows he's raising his own kids and not the kids of another man. I'm talking deep-seated drives here that are in play even if the couple aren't planning on kids.
A woman wants to have healthy children, so she wants to be impregnated by stronger men. So she might cheat on a weaker male with a stronger one. A woman can generate only so many children in a lifetime, and each takes 9 months and a lot of biological investment to cook up, so each has to count. A man can impregnate a small town's worth of women in a few weeks, so he doesn't have to be picky to end up with at least a few good kids. He invests all of five minutes to create each kid (maybe an hour if he takes the woman out to dinner first). Her drive to pick the best partner is necessarily stronger than his.
In a cuckold relationship, the man gets pleasure from seeing "his" woman fulfill that imperative of being with another, presumably more desirable, man. It's a humiliation because why else be with that guy unless that guy was a better partner. In an odd way, it is also an act of generosity towards her, though still tainted with humiliation. "I know I come up short, so it's ok for you to be with this stud."
His pleasure in being humiliated is what makes it a paraphilia for him.
What of the cuckqueen? Her man's sex with that other woman isn't really going to affect her own kids, current or future (in the cuckqueen scenario, the man goes back to his original partner). But if her man is a good catch, and the partner of the other woman is a weaker, less desirable, example of the male species, allowing her man to be with that other woman is helping that other woman out. Indeed, it's a power move, and yet it is also a manifestation of a need to have her decision validated by others. "Your man is inadequate, but I'll lend you mine for the night. It proves I was right with my pick."
The overwhelming need to have her choice in a partner validated by other women making the same choice (if just for a night) is what drives her to share her man, and that's what makes it a paraphilia for her.
In both, there is a sense of insecurity lying at the heart of the cuck behavior, but each manifests very differently.
[I know I'm writing all this from the point of view of basic biological drives. We're more than just animals, sure. But the animals drives matter.]