There are people who unironically like Steph from
another certain swingers focused game. If anyone thinks Mary is bad for some reason, I'd love to see their opinion on Steph.
(Who's bad on all paths by the way)
She makes Mary look like an Angel in comparison. Mary on the non-cheating path is a good wife, and enjoys their adventures together. Sure, on the hotwife path she's extra enthusiastic... but you as the player piloting the MC pushed her in that direction. It's not like she was always this way, it doesn't make her love the MC any less, they're just having a good time, and I approve.