Portia, Mlcers are worse than teenagers because they have the advantage of having good jobs and very nice salaries in order to spend the money on their favorite things. Yes, they are extremely selfish and self-absorbed and don't really care how we feel just as long as they get their ego kibbles of the day any way that they can.
Clueless? In some areas I would say yes, but mlcers can be quite dangerous if they are angry or they think someone is trying to screw them over and take their money.
Unless you go completely dark and cut all contact, you will not be able to put him in a box and leave him in the closet. They have a way of reappearing when you least expect it.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.