If you read my posts you'll see that your situation is very similar to mine. I also went through a period of depression when I became sad, angry and controlling. That made my wife lose her love for me.
We're separated for a month now and I'm just working on myself and waiting for her. Giving her space and time. I don't recall she mentioning the word "divorce", but in the last month we only exchanged emails 3 times about practical things.
It's hard. I was in a positive slope, going up, getting happier. The last few days were bad, I gave a few steps back. I feel like crying right now, something that didn't happen for almost a week. And Wednesday is the anniversary of the day I've met my wife, 4 years ago.
We're here to support you. Talk, open yourself and we'll open our thoughts, fears and hopes with you. And keep strong.
Me: 36 Wife: 33 Together: 09/2007 Married: 03/2010 I love you but...: 06/2011 Separated: 06/2011 Rebuilding: 11/2011