[TOMT] [novel] [before 2011] Teen novel about a dreamweaving alien girl and a human boy in cryosleep

I read this around 2007-2010.

There are two main characters. One of them is a human-looking teenage girl on an alien planet. Her people have a job role called "dream weavers" or "dream walkers" or something similar, who provide psychotherapy through patients' dreams. They're only allowed to do it with the patient's consent. They can also see auras. The main character is training to become one. Her brother's aura is red, which means he is very angry. She goes into his dream without his consent. He notices, becomes violent, and is exiled to a place where they send violent members of society. The other main character is a human teenage boy in cryosleep in a human interstellar ship. The girl character dreams of him sometimes (apparently her dream walking has a very long range) and develops a crush on him without even meeting him.

Notable quotes include the girl's tutor telling her she's not in love with the boy and many people confuse lust with love. There's also a bit where she describes the boy and someone says "That's nonsense. How can anyone have blue eyes?" because in their species blue is not an eye colour.