It will get better. It is only her second day and all the kids are settling in. My sister is a ps teacher and she has preps this year and she makes sure they are get moved around and do activities to make sure they get to know each other. Your DD sounds like mine and even though she is in kinder. My DD doesn't know anyone either and some of these kids did 3yo together so DD knows noone. I tell her to say to the other kids my name is 'r' what is your name? They'll make friends, I know it is hard to think that but keep up beat about school and try to focus on activities rather than friends when asking your DD about her day. Given that other girl was following her, I'd say she wants to make friends but perhaps she knows the other girl. I think you have done the right thing putting her in a different school from the other kids that wernt particularly nice.