The Asahi Shimbun has a story on an actual therapist, a gaijin names Andrew Grimes, who offers counseling in English and Japanese.
Grimes is intrigued by language. For some of his Japanese patients, English offers something of a reprieve, an easier way of talking about their problems. "There is a belief in some people's hearts and minds that perhaps speaking in English, one is able to express one's individual, personal feelings more freely," he says, offering examples of patients who have endured abuse in one language and feel more at ease talking about it in another.The article says he also counsels international couples. I can see how it would be beneficial to have someone who'd get the nuances of both languages.