I asked FW his opinions on some of what your H is saying. Of course, everyone is different, but his take is that he leave while you are upstairs or out of the room because it's easier that way. It's hard for him to tell you goodbye as well so he doesn't do it.
As far as your question, how do you know if they miss you. You really can't know that for sure ever. You can get an indication from their actions (not their words), but sometimes even their actions are different from their true feelings.
As far as wanting to feel him, smell him, etc. I felt the same way, but you can't really act like you feel that way or else he will feel pressured and backed into a corner. You have to act as if everything is OK and you are getting on with your life without him.. You have to get to a place where you realize that you will be fine with or without him even though you don't WANT to be without him
When you get to the point where you feel and know that you will be OK either way and act accordingly then he will feel the change in you.
Stop obsessing and start focusing on YOU.
BFM
There is only one person who could ever make you happy, and that person is you. David Burns, Intimate Connections
