Few people understand the depth of MLC. I think it is a cause of a tremendous amount of divorces, and it slips under the radar. Friends and people in the community unlikely know much about it unless it happened to them.
Start placing the onus on him for the divorce process. Have an agreed time to meet. If he bails, it will be on him. One word of caution with regards to hurrying the process: he may have hidden assets and/or debts. If you do this yourself, have him give you a notarized inventory and request to see all statements. My W charged almost $20k on a credit card in 4 months time. I knew nothing about it until the inventory. He may want to hurry in order to benefit himself. Be cautious, this is the rest of your life at hand here.