I hope you are ok thatll do. 
I see from another thread that you don't know much about the family finances, that he has now taken his computer to work with him, he wants counseling but just for himself, is confiding in his father (who had an affair), and is suggesting a split and 50-50 care of the children.
He doesn't sound very 'depressed', does he?
You really, really need to look after yourself now. I was sorry to read that you have sent him the links to these threads so that he can access your support.
Be clear, for whatever the reason, he is not on your team anymore.
Look to others for support (not him). You sound like a strong and independent woman - now is the time to reach out for legal advice.
Your children have experienced loss - unfortunately, that is life and sadly quite normal - unfortunately, what your husband is doing is something very different. He is behaving selfishly, cowardly and deliberately.
You can't trust him to do the right thing by you anymore. Please be brave for your children's sake.