never underestimate the resourcefulness of the addict! he's managed to "survive" the past six years, right? and prior to that? he is capable of securing SOME type of employment. he's the one that lost his job, spent all your money, pawned all the hockables. you aren't leaving him with nothing, he has traded it all away, voluntarily, for drugs.
I get what it's like to have been a using couple and then get clean and have the hope that both STAY clean. he had the opportunity, he just took another route.
your sanity and sobriety now demand you seek a new healthier environment. you are honoring yourself.