about the one word titles: you can go back and edit the title after you post. It's a small glitch in the system.
about the phone charger: he can pick another one up at wally world or any technology store. They are easy to replace.
You are lonely right now. That is normal. You have spent 20 years with another adult in your home. There were good times and bad times. Recently, the bad times out numbered the good times. You recognized a destructive pattern in your home and how it was affecting your family. You set up a boundary to protect yourself and children from further episodes of self destructive behavior. Your boundary was crossed and you took action. No more idle threats. You made a very healthy choice for yourself and your children. They need an adult to protect them. Good on you!
Have you read "Codependent No More"? Have you checked into Alanon meetings for yourself?