Wed, My H did the exact same things. One day seemed totally committed, the next seemed completely disinterested in me. I remember having a MC session where I said tath I felt my needs were not being met. H got angry at that. He was being a total jerk during that phase.
The important thing is to expect that thsi will happen. He is dealing with a lot of emotions. He probably is incapable right now of tryign to meet your needs, when he's tryig to figure out how he can meet his own.