It could be, how many days has he been in school?
Was he on board before he got there, or was the decision made without input?
When he says he misses you and home, was he homeschooled last year or ps'ed and this is a new school?

I wouldn't worry about typo's....I make typo's too. After I post I leave them, only editing if it affects clarity. Trying to resolve deeply seeded perfectionism issues... grin