Please help me with my girlfriend!!!?

me anf my girlfrined have bein together for 2 years but got in a fight today because i didnt let her go to oakland beacuse i didnt want nothing bad to happen to her.but she thought i was trying o boss her worund and made a BIG scene in front of the whole school.i tried explaining to her but she kept crying and tellin me to go away.what should i do or say to her?should i callher today or give it time and talk to her tomorrow?