I agree with the people saying that it isn't control asking the therapist to change, and it is a transfer of responsibility. I understand that it's hard. I have wanted to ask the therapist to do something similar - to block my number since I sometimes feel like I can't stop myself from firing off a text. However, I know on some level that this wouldn't actually help me. In fact, I think it likely that I would lose the incentive to stop the behavior if the therapist blocked me. I know that doesn't make much sense on a logical level since there doesn't appear to be a purpose in sending texts that will never be read. Yet I suspect that the illusion of communication would be enough that I would continue the behavior, and probably escalate it. I think I might also feel resentful or even angry at the therapist for not knowing what I said in my texts even though I asked her to block me.