It sounds like you are looking for and waiting for something he does to be a good enough reason for you to pull out of the relationship. You want it to be something he does that is dangerous and irresponsible.

The very best reason to not be in a relationship is simply that you don't want to be. He doesn't have to be in the wrong for you to have a good enough reason to leave.

I think all this upset you are voicing about him not following doctor's orders is a bit of a red herring. It's beside the point.