HB, don't be despair. It is always a roller coaster, two steps forward, one step back. good thing now both of you got the emotions out, and he said he wants to keep trying. that's great. and now both of you will will have enough energy to work at it again. I find myself having to blow up every so often to let the steam out. not good for db and i am trying to control it. but after the blow up , i do feel better and have more energy to db again and be nice to h.
Both person needs to see changes in each other long enough to be convinced that the changes are real. It may be he is just having one of those "moments", like we all do. He may be feeling insecure/guilty that he has messed up too much. or may be it is one of those "special day" from ow time. it can be many things. Let it slide if you can.
Piecing is so tough. everyone says it and now we both understand. the uncertainty. In the A, we only have one goal, to get the H back. Now in piecing, it is so much more uncertainty. Take care of yourself.