That's interesting about the FB pictures. My H has done the same thing. He even requested that I delete any pictures of him on mine. But,like you,I don't even look at his page anymore. It's like they create a fake life for themselves online. It is frustrating and disgusting.
But, I am so proud of how you handled yourself with your kids! Keep up the class, honor, respect, etc. I know you know this, but your kids really need you right now... And you are doing a great job.