Jen, It's both. When the EC is there, I find that the LM comes easier for both of us, and it helps to increase the EC. Without the LM, the EC soon falls off as well. What I have found in my sitch is that the LM was only the tip of the iceberg so to speak, and it didn't improve/change much until we started tackling the underlying EC issues.
Nobody ever said that it would be easy, it isn't for either party.