you are correct about the three Cs of a relationship.
Depending on where we are in life, work, meetings, marriage, family, traffic, finance, we are so fed up with communicating to idiots in the office, tired of compromising with a spouse over tedious and significant things, and many struggle with a commitment to a financial plan.
So the promise of the great outdoors is a short term freedom from the oppression of communication, commitment, and compromise.
And for some if they have to do those things in everyday life AND on their outdoor getaway adventure, then it feels like back in the office and the golden cage and the freeway traffic.
As mentioned before, before a multi-day trip, do an interview-style day hike for compatibility. The other person may not be a bad person, but the cocktail mix of both personalities could be sour.
Life is too short to put up with unnecessary crap, if it can be avoided.