"9.) Who does your character trust?"
Fiole trusts her Mother, but she doesn't like to confide in her because although her Mother is trustworthy and always on her side, she is also judgemental and really doesn't understand her. She loves her unconditionally, but she is the nagging sort of mother.
Fiole grows to trust Frank beyond anything she ever expected to even be possible.
Frank trusts his parents as well, but feels he is beyond their help. He trust no one else in his life at the time of the story, that's part of what makes him feel so alone. He never fully grows to trust Fiole, but he does trust his love for her.