Suddenly in the past month my DD has been standoffish to my dad (her papa) and I am not sure why. She wont give him kisses or hugs and if he tries to play with her she whines and runs away. I feel horrible because he is taking it personally and is upset about it. She has always loved my dad and is still nice to my mom, is this something I should be worried about? I forgot to ask the Dr. at our 2 year appt. today. What should I do?