In the country I live in that's a no no. Each race sticks with their own. Demographics are very clear..
You didn't mention what country you're from but I'm guessing the US, b/c we are the most prudish nation really. Her attitudes wouldn't bat an eye in Europe where whole families strip down together and either swim nude or just put their swimsuits on while on the beach. People who are comfortable w/ nudity aren't necessarily slutty, and it sounds like you're trying to sort out which part is slutty and which part is just her being comfortable w/ nudity. You probably shouldn't date her til you figure it out..
Meh it's all about growing up. She needs to think about who her real friends are atm..
I say " How is that different ??? Is the same !! If your not happy with our relationship just let me know !!! Please if you want something else , please just let me know...