This seems to be one of my biggest sticking points, and I haven't figured out how to deal with it. My roomies are up at all hours of the night and there's little privacy. I'm new to the game so I'm always nervous with bringing new people back in case I get AMOG'd out of my woman. (which has never happened, incidently) So much so, that I pretty much write off bringing people back to my place as an option. It doesn't help that I have a double bed that's barely big enough for me. I want to get a queen, but that's a huge undertaking.

and you know, this is probably inner game related, but should I go for broke (possibly literally) and get a place of my own? Go for the hotels in tourist spots and say I'm in town on business? (I have done that)

I had the same problem for a while but both of my roomies have gf's now so I have permanent wing men and pivots haha. The only thing you can do is step up your game and build as much attraction as you can before you invite them over. If you really like a girl you can tell them and ask your roomies to wing for you, otherwise they will see her as fair game. Isolate as quickly as possible! Once you have kiss closed you will have her invested enough to where she wont want to cause drama between roomies so you have the home field advantage. Good luck!
-Brick