Aww <3 that is such sweet attitude. I hope she can carry it with her, she seems to have good role models.

I hope the angry kid can handle whatever the issue is. I was almost wondering if it was due to him feeling like he's "not a baby anymore" you know how kids can do that, like they have to prove that they're older than they are. Like maybe just getting to grips with their identity as "not a baby"... I know I've seen at least one example of a kid like that in life.

But in the end it sounds like the poor guy has other issues, hopefully it can get sorted out.