I stand by the post you refer to of course. Juliet, I think, gave Rebecca the benefit of the doubt for the sake of Chan who liked him at that time. Although remaining very much on the side of Chanelle, Juliet was still sceptical of Rebecca analysing his every move in case he seemed to be treating Chan the wrong way after what happened in the house (I think, ask Juliet).
All this could very well embarrass Juliet now, she hasn't said, but not half as much as those that fell for Rebecca's charade hook line and sinker. Embarrassment a plenty there I think.
Circumstances and events change but we still need to understand those events, as much as possible, if we are to not be deluded by the surface that is put before us, to manipulate us.
Opinions differ all the time regardless of events changing, the trick is to be able to Analise those events in some depth in order to have a meaningful opinion that gives some insight into what is going on. In order so that we can have realistic views and expectations, and not be deluded.
We are fools if we think that we have any powers of persuasion on events but what we can do is try to judge events with a clear head and not get carried away with the impression that the media projects for us. Then you don't end up wasting your time in a delusional mission to create a fictional romance that was always going to end in tragedy (due to Rebecca).
People have needs and wants and will find them in events no matter what the "reality" may be. We are all guilty of this to some degree. Being embarrassed is normal and people should I suppose learn from the mistakes that they have made in judging Rebecca. However our instincts are so strong sometimes so as to outweigh any logical or analytical considerations. We're only human after all

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You are right, Chan does have many people around her who love her and support her. As Chan's parents or friends might tell you though supporting isn't always just following everything that Chan does without a degree of guidance or even criticism.