<human>: My [23 M] housemate [27 M] of one year is addicted to meth.

Long story short I co signed a lease with bob who I later found out is addicted to meth. The landlords live next door. 

For a short while I tried to help bob quit meth. We deleted the phone numbers of his meth dealers, smashed a crack pipe together and dumped a whole boot load of needles at the local disposal place in the middle of the night. It didn't work, he picked up new equipment and relapsed. He buys street meth and refines it using DIY lab equipment. From what I recall, this process involves dissolving the meth in isopropalalcohol, washing it in acetone and then letting the acetone evaporate leaving a more pure version of meth. I'm a little uncomfortable with having a micro meth refinery in the house I live in but my options seem limited.

I dont have the money to move at the moment. I am super poor and somehow managed to find a place that costs $70 a week even though I am 5 mins on the train from the city. I cant afford the capital cost of moving but I also cant afford a 50% increase in rent that I would likely have to pay for a similar place.

I also dont see a way to get him to move out aside from snitching on him to the landlords/police which I'm unwilling to do. He also loves this place.

I think his dedication to giving up meth is a bit too variable for long term success to be plausible at this time. Perhaps with long term support he can break free of addiction but my dedication to helping him also waivers. I have a university degree to focus on not failing. I dont want to abandon him in what seems like his hour of need but at the same time I want my home to be a sanctuary away from other peoples problems. I also fear that the landlords will eventually discover he is addicted to meth and that will cause me great troubles of my own since we are both on the lease.

Can you give me the gist of the text in a nutshell?
<bot>: My housemate is addicted to meth. I cant afford to move. I dont want to snitch to the landlords in order to make him move and my previous efforts to help him quit meth have failed.