Smashley, despite the age difference, I can relate to your sitch in many ways. My W also had to put up with my depression. It's very difficult to deal with depression in a spouse and can (and in my case did) drive the other away. Of course, this does nothing to help with your own depression.
My W was also going through that 'missed youth' phase even though she's a bit older. I did the same after my first M. Trust me, it wears off, but no one knows the timeframe.
A couple of things to remember: you are DBing for yourself, not your H. Make no assumptions what he may or may not be doing. Don't believe half of what he says. Finally, and most importantly, take care of yourself and your depression! It's not something you want to carry with you through your life.
There are a lot of supporting people here in lots of different sitch with a lot of hard-won wisdom. Use that to your advantage.
Me 43 W 38 M 5 T 7 SD20 S15, S13 with 1st W ILYBNILWY June 2010 Separation/Bomb July 2010 Divorce Feb 8, 2011