According to the " Boy, Interupted" interview with DS, Rebecca was not allowed to go to the airport with Max.
"According to Dina, Rebecca was not allowed to cross state lines alone with Max or take him to an airport."
If this is true RS could have been really pissed that she needed to
stay home that morning and not go with the others to the airport. The
wording of the article does not state clearly, whether she could be at an airport with JS and Max or not at all.
If RS did something to Max when he returned form the airport then
Dina might feel some guilt that she laid down all those rules. Moo
www.phoenixmag.com