Depression has a way of taking the fun out of everything. Getting well is a slow process. You just do not feel like you have the energy for anything! Being intimate is a great stress buster but you have to just jump right in whether you feel like it or not to help you get back on track. Anti Depressants have a way of lowing libido, but not all do. For some, it is just a temporary thing and then you are back to your old self. My husband has been very supportive through my ordeal, but I know there are times when he feels neglected. The fact that he never pushed me or made me feel bad about my lack of interest really helped to bring it back around. I guess what I am trying to say is that everyone is different and we all get our groove back on at different times. I hope you and your wife can re-connect on that important level very soon!
Good luck, but sound like a nice person who loves his wife.