Yes, let him talk to the Lawyer. MLC'ers flip flop around so much and it is probably best to wait to sign the papers once things a little more settled. If he wants to change things to a legal separation wait until you receive those papers. Please stop trying to explain about MLC to him. It is like telling an alcoholic that they have a drinking problem and they are not ready to accept it. As far as your Husband is concerned, he is perfectly OK and has made new lifestyle choices for himself. Let him believe what he wants, there is no point in trying to be rational or logical.
There can be no testimony without a test. I am praying to go through this test and come out the other end with a new and better marriage then before.