Libertine

I just found housing for me and a good friend of mine, and even though the place is a total dump (in a ghetto, looks like it used to be a crackhouse), it's quite large (4 bedrooms, balcony, shed, large living room, etc) and cheap ($150 a month - I shit you not).

Now, what I'm wondering about is if it's a good idea to get a friend as a housemate. We've been good/best friends for almost 10 years - quite a bit, considering we're both 21 - and know eachother pretty well. Right now I'm living with three very christian people, and he's living with his parents, so this would definitely be an improvement.
However, I'm afraid this might be dangerous to our friendship, and besides that, my girlfriend is totally and completely opposed to the idea (something to do with me and him getting drunk quite often when we're together).

So, anyone got ideas/advice on this?

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