My girlfriend is crazy what do i do?

hmm.. well, she's definitely overreacting. but trying to see it from her point of view, maybe she just wants you to feel comfortable enough with her to bring her over to your house anyway, despite your feelings. maybe she would feel more secure in the relationship if you were willing to take her to your house. but try explaining to her that it wasn't anything against her, that you would just rather take her somewhere really nice because she's worth it and hopefully that will soften her up and make her realize that you're not the bad guy :)