5 or 15?

I was laying beside Rachel tonight at bed time and she was talking about school. She was telling me that kids get to choose others who are being very quiet. She told me that a boy in her class (our brand new neighbor) really really REALLY likes her alot and he chose her. She said how she wanted him to choose her so bad but she didn't want him to choose Anna. WHAT? Ok she is only 5!!!!!! HELLO. Then she went on to talk about the boys and girls that she likes and the ones she doesn't like. That is when I had a talk with her about trying to like everyone or atleast being nice to everyone. Then she asks "how am I supposed to be nice to someone who is like that? (someone is her class apparantly doesn't like her and she said he is always mad) OH dear. Is this an indication of her teenage years? I'm not sure I have the energy for this. I am drained already and it has only been 5 years. :)