"I'm watching every move you make and listening to every word that comes out of your mouth."
In other words, he IS watching you, but still giving you enough rope to hang yourself with at the same time.
Basically, (my W and your H) are doing the same thing: backing off completely and simply watching how we react/change. They are NOT in the situation anymore, but ARE observing with eyes like a hawk's....basically waiting for anything to go wrong.
You and I, unfortunately, are in the position of having to be virtually perfect. They will NOT acknowledge that they are passively watching, but they ARE...do NOT doubt this for one second.
Change you must...but you must do it for YOU because ultimately, if things don't work out, you will have to be able to look at yourself in the mirror and KNOW you gave it your best shot, and are a better person in the end for it.
P.S. Pride is your enemy right now. Just something to consider.