I feel you, believe me. It was hard to make certain adjustments when I moved down here, alot of people are Bible belts. Being in A.A. I get quite a few of them who frown on the Goth, Vamp, and pagan stuff. On elady told me that I needed to get outta the goth stuff. She was a good ole girl. Their are also a lot of good olle' boys down here. Fortunately theirs a goth night at least one night a month and some areas with cutting edge diversities.
You may be able to work some kinda median with your roomie who don't see I 2 I. See if she will be willing for that. I don't to change everything but at least get her to let play Bauhaus, and if she wants to go out w/ you , maybe she could try the goth clubs once in a while. It ain't gonna kill her. Believe me, I endured the hip-hop shit myself for others.