Boy, does that all sound familiar.
I guess it all comes down to what you "don't want" most. Roommates, Nebraska, Bankruptcy, An Addict using up your emotions and your resources. What choices.
I think the beer cap thing is interesting. I would have tortured myself with questions like "Why would he leave them for me to find? Is he tryng to provoke me? Does he think I'm stupid? Does he want help? What? What? What?"
Yes, it's reasonable to expect him to "work the program" if that is his choice of a recovery method. It's also reasonable to give it a little time, if you choose. AND it is reasonable to explore other options. Does he know about your resolve? It's fair to tell him.
I'm trying to be detached, but I'm having a "that miserable jerk" attack. Pull your own weight you creep! Sorry. Strong identification. I let my anger out here, too.
Smoke