Dont know what to do

Well, the time is nearing.  My husband will be leaving me in about 2 weeks to move across the country in what he calls a "separation".  I hate that I let this depression take over and ruin my life and our relationship.  I don't want him to go, I want to work things out, but he's not willing to at this point, and say "maybe" in the future we can work it out, that he's not filing for divorce, but he isn't going to be acting like a married man either. 

Sometimes I think that if he really loved me, he would stick by me and work it out (I mean there was not cheating or other bad things like that, just me asking him about who is friends are), and other times I blame myself completely.  I'm confused and hurt.  I feel so lonely, even when I'm in a room full of people.  I just want this feeling to go away.