I wouldn't get too caught up in anyone behaviour he has... you really want to focus on consistent imporovement. If you get too caught up in analysing each move he makes its tantamount to pursuit and it WILL make you VERY ILL long term.
Whether he cares or not, whether he's trying to avoid you, this is not really that useful as information. The actions that bring him back are reality.. tons of it... exposure is the route to go here. Analyzing his behaviour at THIS point isn't too helpful.. you KNOW he's cheating, you KNOW he feels uncomfortable about everything... Not much more info to be gained there.
He needs lots of reality thrown his way and zero else... no fantasies or validation of them
