Oh, yeah, Kitti. I sent my H a few emails during that time. We had such a tough time talking to each other - and it was really hard for him to hear me through the alien racket in his brain. Written communication had not been a big part of our history, so it was also a new 180 for me. I think writing things down gives them the opportunity to hear what you are saying without going into defensive "I can't hear you" mode.
Now, having said that - if you communicate in writing, it REALLY has to be clear - so much can be misconstrued. You have access here to the world's best group of editors - US - so be sure to post anything you write to him and get feedback before you send it. And I think it's always best to stick to "I" statements - nothing that could sound accusatory. Butter him up. Validate him. Then tell him what you need.