My dd (7) came home crying a while ago because of this girl, let's call her Liv. (Not her real name) She was handing out presents at Christmas and she gave one to everyone in the class (there's twelve of them) apart from my daughter and doesn't say anything. The teacher says to liv, what about dd? And she says oh, I didn't get her one.... then today liv gives out party invites to everyone except dd and she keeps telling dd how fun the party will be. Dd is so upset about this, what should I do?? 