Yeah I don't know your situation, although it sound like an intense one, so my observation was more a general one. But you also don't and didn't know the situation of the others in that cabin so your interpretation of how "they misread you" not true either. Maybe that "white knight" was worried that you would get in the way of him getting it on with your ex, maybe scared of not measuring up to you, but couldn't navigate those feelings and acted aggressively towards you by intentionally misreading you. My guess is as good as yours...