Getting D papers really helped me with detaching. I could never really detach while I still had hope, and for me, getting those papers killed my hope. It allowed me to move on. It freed me up to doing some actions that hurt the chance of R, but would help me going forward. As far as how to act, I've gone as dark as possible with kids. Your mood doesn't matter nearly as much when all you say is "Hi. Ok. Bye"