"You sure you're alrighty Zach?"
It was the second time Stella asked him that question, as if his first reply seems unbelievable to her. Well, it was.... He can never hide something from his sister's sharp, observant eyes. Knowing her, she was the type who sees everything, even a spec of dust on the floor, and there's not a single thing he could be able to hide from her.
If he tells her the obvious truth, Stella will not leave him alone, instead she will pester him until he says every tiny detail. But even though he and stella was close with each other, he was not the person who easily spills his feelings. He was a private man and he like to keep his emotions all to himself.