Wrong, just plain wrong.

She is a product of the very toxicity around her during her formative years. That is most definitely going to shape her ability to form and maintain relationships now - especially if it is with those involved in her earlier abuse or who failed to protect her. The third wrong here is ignoring this.

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As for the therapy. Please don't make your assumptions as you know not what goes on during sessions with any certainty. She might be saying to those around her that it is so positive as a coping mechanism. In reality, it could be that her therapy is incredibly difficult for her.

Two thoughts here: why would the therapy continue if it was so successful? Also, a good therapist would see through the way she presents herself and could form a more realistic picture of what is actually going on.