Dillon

Hey
I am new in here, but I hope I am doing it right:)
I just wonder why it is (in the key) that everybody seems to accept and trust Dillon completly and it takes a long time before anybody (except Arkarian) accepts Rochelle?
Is it "just" because she also broke the friendship between Matt and Ethan and was not able to trust in the "real" world and Dillon always was there friend?
Or?