If he feels comfortable in writing out his feelings, then address some of the things that you would like to speak to him about. I would be honest and straight to the point. Do not soft tap around him. If he's truly wanting to work on the relationship, he will need to hear exactly what you need and what the both of you need to do to work on the relationship. Maybe, at some point, a MC would be helpful to the both of you...but that would have to be brought up a bit later.
Sounds like you have experience a little bit of MLC yourself, i.e., how the depression may life look to you. Sometimes this happens when one spouse has a serious depression/MLC, when they come out of the fog, the other one tends to enter their own fog. Not everyone does, but there have a been a few who have done just that on the forum many years ago.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
