I notice that I am also battling with my negative emotions now that we are piecing. I think that once the anxiety and uncertainity of "will he or won't he leave me?" is resolved, it makes room for all the hurt and anger that has been bubbling under the surface to come up. I think we just have to be patient with ourselves to sort that out in time.
Also - finding the balance, once piecing, to GAL, do 180's yet still be re-building the M... I find that difficult too. I find the temptation to fall back into old patterns, become more dependent again, etc. are there. It is a daily battle of continuing the positive changes going. It is hard work.
Hang in there my friend! I hope your funk lifts and the weather gets better!