I would just tell him I am tired of this behavior of not knowing what is going on and just separate apart. I think you both need it, even if it's just for a little bit.

He may apologize and realize what had happened or not apologize and it maybe best to find someone else because this isn't healthy.

Counselling is another option because I can see the pain at both ends. Let him know you care about him and that you feel it would be best for "both" of you. He's gotta listen to you just the same as you listen to him. If he says no to it, then you KNOW.