Answer:
He realizes that one positive thing about not living in Berlin anymore is that her friends are not around to bully him for being the smallest boy in his class. He comforts himself with the idea that when they return to their home in Berlin, he might be big enough that they won't make fun of him anymore.
How the world of animals and people overlap
Answer:
All you have to do is just write "I need to talk to you about something."