I don't think that this is something you should worry about, especially since the person you are worried about is merely a character. Although I don't know any empaths, I do know plenty of counselors and as long as they don't get too emotionally invested in their client's problems, they're fine. People who become counselors went to school and trained to know how to deal with other people's emotional problems without getting too invested. Also technically all people suffer so suffering isn't something that's new.
Eine empathische Beraterin erinnert mich übrigens an Deanna Troi aus Star Trek: The Next Generation. Ich bin mir nicht sicher, ob sie der Charakter ist, auf den Sie sich beziehen, aber sie ist ein Teil von Betazoid, was sie empathisch macht, und sie arbeitet als Beraterin auf dem Raumschiff Enterprise-D der Galaxie-Klasse.