Well we're sorry we did not mean to hurt you that way.
Why would all of you do something like that...
Well that's too bad ,because I'm moving back to Earth any way.
In this scene the kids are very sad for what they have done to Margot. They do this during the aftermath of this horrid incident. Yet still during this time Margot would have been very quite and upset during this time.
After a good bit of time she finally speaks up to let them know that she was "still there". At the same time every body is trying to apologize which does not seem to be working... Margot in this case was not accepting any apology for what they did.Yet
During this scene Margot finally stands up to everybody to tell them that she would be moving back to Earth. (Well because of them). After this statement everybody is deterred from what she had said. Because of that everybody thinks back of what is really going on