I know this message wasn't directed at me, but hope it's OK if I respond anyway.
Some quick background: In full transparency, I am in an open ENM relationship (7 happy years and counting), though most of our non-monogamy comes in the form of group activity together, rather than one of us using a 'hall pass' to go out single and enjoy. We both have full freedom to do that (and have), but we don't often do so, as we really enjoy the shared experience.
As for the story, the couple went off the rails almost right off the bat. I'm doing this on a work break, so don't have time to pin down the exact chapter(s), but in short: They didn't have clear enough and/or mutually understood boundaries set, Sarah repeatedly broke the boundaries they did set, they didn't respect each other's hesitancy/nervousness/equivocation after upticks in early playtime, and (biggie here) they tolerated disrespect from someone outside of their relationship. And that was all relatively early on. Now? They're not even remotely on the same page. A fully separate relationship has been created, and even nutured.
At a basic level though, where they failed is that when life got difficult, they didn't stop their play evolution and wrap their arms around each other (figuratively), and re-commit themselves to their marriage and their family. When Dan had to move to another city, when Dan's job got tough, when Sarah lost her job, the finances, etc. One could make the case that the third paragraph of the entire story was about their life becoming difficult, and they never should have embarked upon this adventure in the first place, for reasons that had nothing to do with sex. First sentence of the third paragraph: "Like most American families, the economic downturn hit the Williams hard."
Back to the personal for a moment: This ENM ride has been one of the greatest adventures of our lives. But my SO and I have certainly taken breaks when life got difficult, and we also try and keep it simple. We do have naked preferences for sure, but as for the big stuff, we have but a few simple guidelines about all of this with each other, and with those with whom we engage:
For us:
- Full transparency with each other at all times.
- If either partner is uncomfortable, play stops immediately. Either partner has full veto power at any time.
For others:
- Show up when and where you said you would.
- Be a decent human being for the entirely of our encounter. No disrespect will be tolerated.
We know people who have far, far more rules than those. But even if Sarah and Dan had those same simple rules in place, they would have broken all of them multiple times.