If you don't want to file for divorce, why would you?
DB is about doing what works, which for everyone may be slightly different. You've gone dark and stayed dark, and still nothing. Something's not working. It may be that he just flat out doesn't care anymore. OR, he may be waiting to see if you still care.
I would send out a very non-threatening email. Don't make it about tying up loose ends, or he may think you want to move the divorce along. Maybe something along the lines of..."I ran into Jack the other day and he asked how you were doing. I told him I don't know. How ARE you doing?"
Me 36 Husband 35 D5 S2 separated: 10/29/07-present Served divorce papers 1/22/09 "When the world gives out beneath your feet, it is time to learn how to fly."