One of my best girlfriends in college was a Southern Baptist. I told her about some of my beliefs, and she told me with absolute assurance that I wasn't a Christian.
I believed her and went and explored other paths. Today, I'm happily Pagan...a bit older and wiser. And I'm glad that she said what she said. But, I do realize now that I allowed her opinion to mean tooo much to me.
So, take it for what it's worth. I'm sure your friend loves you very much...but its still just her opinion.