I know just how you are feeling. Mine acted the same way. I haven't had any contact whatsoever with him for 2 weeks. I don't understand it either. It sucks and it's hard and I have so many questions that at times it drives me absolutely crazy.

My ex's way of solving problems in his life is to run away. Never face them or deal with them or try to find a solution. He runs away leaving a trail of destruction in his path.