Communication w/mlcers can be difficult because they really do not want to talk to us any more than they have too. It reminds them of what they've done and it makes them feel guilty.
Communicating w/the children is on a different scale. It's about what they are doing for the summer, etc. Conversations w/children don't require a lot of focus or demand that he provide "adult" responses to questions.
When communicating w/a MLCer, try to keep your emails short and to the point. Stick to one topic at a time. Do not send a lot of text/email messages because they will just sit in their in boxes. They don't want to be reminded of their pasts. I know you have questions, etc., but he's doing the typical stuff that MLCers do. Sometimes, we have to just do whatever we need to do if the MLCer doesn't respond and if they get angry, point out that you've sent emails and gotten no responses.
I'm so sorry he's acting like this.
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.