yeah she likes you more than a friend. I'm a woman and there is no way i would snuggle under a blanket with a guy unless i liked him more that a friend. I think that next time you hug hold her for a little bit longer and them slowly pull away and then give her a soft kiss on the lips. If she doesn't like it you can just apologise and then talk about why you did it. But i'm pretty sure she would love it and want to kiss you back. I don't think that this type of thing would wreck a friendship as strong as what you have described.