And just so you know - it could take years for him to come to his senses - or never. DON'T put your own life on hold waiting for him. Get out there and try new things. If a handsome man lands on your doorstep, date him. Create a vibrant new life for yourself. If he comes to his senses eventually and wants to come back, he will just have to do the work necessary and hope that some better man hasn't snatched you up in the meantime.
As for the "dead" eyes - yeah, most of them have that. They thought YOU were the cause of their unhappiness, but with you gone their unhappiness is still with them.
Boy did this ring true for me tonight with my own sitch. This is dead on. I can relate to the "dead" eyes. My H kept his sunglasses on most of the time when I saw him briefly on Sunday. He looked really haggard.