You are in pain right now and you want a clear cut decision to start the healing process. If you really think that waiting around will accomplish something, you are wrong. You are already moving forward here. Hearing I miss you sucks I know, but you have to keep doing what you are doing. Tell him that he needs to be on his own to figure out his issues and you need space too. If he needs clarification on that, then say we are not together.
Do not worry about the consequences of this because you are doing this for you. What is happening right now isn't working. Making decisions around how he feels and what you are afraid will happen will not get you anywhere. Remember this is for the best, and tell him that even if he doesn't understand now. A little time on his own will get his mind cookin.
Waking up next to a beautiful girl,
Step outside and say hello to my beautiful world.