This sounds very similar to me dude - had something very similar happen to me about 18 months ago.
It's not nice I know this but you've got to think if she's prepared to treat you like that and make you feel that way she's not meant for you nor is she relationship material.
Had this thing happen to me (well, I slept in a sleeping bag on the floor next to her bed).Thriller said:After this she said that i could stay over to sleep, so we went upstairs and instead of me sleeping in HER bed she throws me a matrass into a crappy little room with a sleeping bag and she told me we were going to see some of her friends.
It's not nice I know this but you've got to think if she's prepared to treat you like that and make you feel that way she's not meant for you nor is she relationship material.