I'm sorry you have been made so confused by this. You did NOTHING to bring this on. The therapist has the responsibility of keeping the relationship therapeutic, and not letting it cross the line away from therapy and into friendship or anything else.

However you decide to handle this, please know that you do not have to justify your decision to leave to her. You do not owe her an explanation, and although you may feel guilty or ashamed, you do not need to. Taking care of yourself by extricating yourself from this relationship is a really good idea.

I'm sorry this happened to you. Therapy is not supposed to get mixed up this way.