The context of the following conversation is When Casey moved away from her home town, Cameron asked her write home.:
Cameron says I asked Casey to write home when she moved away from home..
The friend responds It's hard to leave your home town..
Cameron responds She's been here all of her life..
The friend responds She's going away for college right?  Where is she going?.
Cameron responds Casey is moving to Cambridge, Massachusetts. She got into Harvard..
The friend responds She is so smart..