They ALL change into "heartless aliens". You have been here long enough to see that! Why do you think EVERY ONE OF THEM DOES THIS???
In newcomers there is the List. But more important than that list is the 180. There are plenty of people here that need to show their S's that they DO CARE!!! I hope I don't sound sexist, but most of the time it's a guy, but sometimes it's not. These people have held back emotionally and it is a 180 FOR THEM! One of the things that really got to me from my unemotional H was when he cried and said it would break his heart if I left him. I will never forget that moment as long as I live. It was shocking.
No, acting like missing him in YOUR sitch would be a 180 and would be HELPFUL in the db process.
I don't want to mess up your work--and if becoming emotional messes it up I don't want you to do that.
But being detached is NOT about not caring!! If your H is ahead of you in the detachment, GREAT!! That means he is looking at all this objectively now without getting all angry about it. He is way ahead of you, but in a good way! He would probably be interesting to talk to. But he thinks you are ANGRY!! So of COURSE he doesn't want to talk to you.