If you really want to pursue this lock thing then look into the legal ramifications. You don't want him to turn around and not pay the mortgage or something. Pick your battles.
Plus it is difficult to set boundaries with a WAS. Again, pick your battles. I know it is hard to let go but you can't control him at this time. It is easier to set boundaries, for example, if they are being openly disrespectful to you rather than creating, for want of a better word, trouble.
This time is about you, concentrate on you and your well-being. If you are planning a period of dark again, focus on what you can do yourself to help with detaching and keeping hold of your emotions for your next encounter. If you fill this time with GAL you will find it will help with your next meeting with your h. I know you are limited but check your local library board - mine is full of yoga groups, Tai Chi, Choir etc.
