As far as the client vs. patient semantics goes, I honestly don't give a flip either way. I've never had a therapist refer to me as either; they called me by my name. Seems like that's what I prefer.

I've never had a therapist insist on even one "termination" session (never had one call it such a thing) much less multiple ones. If I chose to stop seeing a therapist, I simply stopped seeing them. To my knowledge, they weren't bothered by that if I hadn't seen them very long. The ones I had seen for a length of time completely respected my wishes, let me know they were available if I chose to come back, and we parted on good terms.