Covert narc tried to have the same therapist as I have

He has done many manipulative things during our 11 years together. One of the latest is that he tried to be seen by my therapist. He tried to get there as a new customer unrelated to me. Luckily he had been asking a lot about my therapist lately and that set my alarm bells ringing. I talked to my therapist about this snd she assured that she wont take him as a customer, because it could affect our therapy relationship.

Have anyone else had the same weird experience with their narc?

Why would he even do that? Maybe triangulate with her / invalidate my therapy somehow?

He is very sick in the head. I have left once, he reeled me back in with his good act and lovebombing. Now escalating devalue again.