I ask because when I pick up my ds who is 3 from his preschool, he does not seem very happy to see me, I feel a bit rejected in fact. He does not say anything, smiles rarely, often runs around, wanting me to join him. He settled at his playschool immediately, no tears, never asked me to stay. I know he likes it there, is keen to leave home in the morning, and hurries me. I wonder if I am being over sensitive! What do you think?