In this song, Ariana is basically incorporating the story of her love life with the Christmas time. She is addressing Santa Claus and asking him about her future. Ariana is sharing a past experience in which she fell in love on Christmas but then had her heart broken soon after that. She is afraid of making the same mistake again, which is why she wants Santa to tell her if the guy is sincere or not. She is saying that if it is not true love, then she does not want to pursue it any longer.