My question would be what event occurred this week which triggered such a behavior? Is his crying as a result of not getting his way or is he experiencing emotional hurt or physical pain? Also, has the bus driver reprimanded both of your sons for fighting? Finally, do you discipline your son for this behavior? If your son is crying out in manipulation primarily because he does not get what he wants, this behavior warrants discipline.
He is crying because he cant sit with his brother. My boys were not disciplined for fighting because the bus driver said its what brothers do. he wont allow them to sit together any more. When mason is acting this way i will ask him why he is upset and if its for not getting his way i tell him that its no reason to cry and have a fit. if he keeps doing it he will get a time out.