Hi ~ I know this is stressful for you. I'm sorry he hasn't let you know anything.
I don't know how long you've waited so far, but I think i'd wait a couple of weeks, and THEN try to get back in touch with him. If you get the same response, I'd just forget it, and move on. If he chooses NOT to let you into his life and his difficulties like most couples do, then I guess he doesn't think much of the relationship. I'd let him go and just move on and try to find someone else.
You need someone who TRUSTS you, and this one obviously doesn't. If he did, he would include you in any issues that come up. He would look to you for support and include you in any decisions he might have to make. I'm sure you would do the same with him, if you were going thru such things. So look for someone that YOU can love and trust -- someone that DESERVES you. God bless and please take care. Hugs, Lee