Honey - you want answers, we all do. Unfortunately, you may not be able to get them. If he is in a MLC, he doesn't have the answers, so he certainly can't give them to you.
There are a lot of great people on this board. I would be a basketcase if it weren't for them. In order for them to help you, it would be helpful if you could start one thread or topic and continue to reply to that topic until you can't anymore (it will lock). Then you start a new thread or topic. If you do this, people will be able to follow your situation and help a little better. You may also get more replies from more people. Also, the more information you give us, the better we can help you. Many of our stories are similar.
My H left a little over a month ago. One month today, he told our D's that we are getting a D. I understand what you are going through. It is very hard at the beginning to not have him here. In my situation, it was very sudden and unexpected.
My guess is that your H is avoiding you because he is confused and feeling guilty. My H can't look at me. Now my H hasn't gone AWOL, but we have two kids, so there is that tiny connection. But when he comes to get them or drop them off, he does not come in. Most communication is done via email or text messaging.
This isn't easy to hear, but you have to stop waiting for him. You need to GAL and detach from him. Read the resources on these boards. They are helpful. Also read DR - it really is more of a self help book than anything else.
My guess is that you aren't eating or sleeping well and are only going out when you have to. Try to focus on taking care of you now. Is there anyone you can confide in? Are you seeing a counselor.
What your H is doing is out of your control. You can't do anything to change him. But you can change you - so work on that...focus on that.
It does get a little easier....event though it doesn't seem like it will, it does get easier. I am no longer paralyzed everyday. I am functioning and trying to move on.