Biological Pillar wall'e does not have a real family but he has eve and the roach and he counts that as family.
Cognition Pillar wall'e has found his happiness with eve because he was so lonely before eve came because he did have nobody.
Life Span Development and Learning Pillar eve has learned to not be a better robot to wall'e and has learned to be a safer robot and not hurt anyone.
Social and Personality Pillar wall'e starts to mimic a a cat in the movie to the personality pillar, specifically play
Mental and Physical Health Pillar wall'e mental and physical health is starting to feel lonely he wants somebody to hold him just to make him feel like he is special.