In all the classes I took, ethics was mentioned, and many specifically mentioned the ethical boundary of being intimate with clients. In one, it was actually likened to child/elder abuse in that a client/patient is not considered able to "give consent" due to the nature of the realtionship. I heard this in both grad & undergrad, as well as multiple internships.

I'm sorry he is so irresponsible and conniving. Sending much love.