Madluv, I agree. I think when people say "detach" they mean "practice detaching" or "do those things, say those things, think those things that help you detach".
I would have given anything to be truly detached during all of this. I just wanted the pain to stop. However, once I learned strategies to cope, strategies to detach, I would employ those in situations where I needed to detach. I understood by then to monitor my feelings of attachment and had built a toolbox to help me detach.
So what I read, when people say to someone that they need to detach, is "open that LBS toolbox and practice detaching".
I find that toolbox helpful for other things in life as well now that BD is many years in the past.