I agree with ECHOES that she didn't make you feel this way. Do you really think you're being manipulated? Seems like she would have to be an awfully good actress to be making tears flow like that if it was only to manipulate you. It sounds to me like there are a lot of emotions going on that you could be examing in therapy.

This, for instance. Why do you say that? Is this how you really want to be? Is there any room for improvement here?

If you promised you would come back, and are worried that you may have destroyed her psychologically, it sounds like you need to go back. One - to keep your word, and two - to reassure yourself that she is OK. Since you want to remain with one therapist only, my feeling is that you should go back and tell her how you've been feeling since you left. It just seems like there is "stuff" to work on here. Good luck, whatever you decide to do!