Mixed signals....is she interested?

I met this girl at a superbowl party on Sunday, we talked alot and eventually left in my car and took a roadtrip by ourselves to pick up a friend. She gave me her number and she texted me first(she was drunk) the same night. She calls me her "bestfriend". We have been texting back and worth for a whole week.the text got a little dirty at times but nothing ever came of it, sometimes the texts were severly boring. She came to a small party at my house and we had small talk, she put her head on my shoulder, and again, some if it was awkward. We left to watch a movie and we eventually ended up sleeping in the same bed, really close.we also left to gether to get ice cream cones and she finished mine even though I had licked all over it. I'm definatley not as attractive as she is, I'm a bigger guy, she's beautiful......friend zone or is she interested in me