I had a similar experience with my last T and it was probably the biggest benefit of therapy for me. I had a very disruptive habit of emailing/virtual communication with people for years and I just kept jumping from one person to the next... they all engaged and reinforced it, that's why it never stopped. My T was happy to engage via email in the beginning but it because less and less, he kept it very minimalistic and in the end stopped responding altogether. After a while, I just lost the interest in writing to him and never started that habit again with anyone in a similar compulsive way. It was a huge relief and opened up a great deal of mental energy and time for other more productive and healthier things. I am really careful now not restarting one-on-one communication like that with anyone and don't miss it at all because the healthier relationships I have now are infinitely more rewarding.