You won't ever be able to really tell what is going on over there with them. I spent a lot of time trying to figure out what the deal was with ex and the other. Point it, speculate as I did... I still don't really know anything other than what my kids tell me or what I hear anecdotally from eyewitnesses (lol).
You will find out in due time. Just continue to prepare yourself either way in the interim. As for how the others feel ... think about it, they have spent an inordinate amount of time trying to build up "a play play world" whose foundation is composed of lies, deception, falsehoods and misdeeds ... I imagine that it takes a lot to look at yourself in the mirror everyday and feel ok. Given that, they struggle to drag others into their misery. Let her lie in her own insecurities and move ahead as you are with your life...