I have a suggestion of a method I used once... and it was really helpful using it to communicate when lines of communication with your partner just aren't possible.

We used to keep a journal. It wasn't a private one, it was expressly for the partner to pick up & read when they felt like. No pressure of having to read letters or emails. In the journal we wrote how we delt with each day, things that annoyed us, things we had to work out, etc,etc. We would write when we read each others journal, and how we felt when reading it.

It gave a more relaxed way of communicating with each other... which took another stress off us. (and we can all use less of that!)