Girl's Behavior

So what kind of platonic friends do you fit in to?

So this is related to my previous question/post. I was wondering, at what point do male and female, casual or platonic friends hangout and it basically seems like it becomes a gray area. I came over to spend time and keep them company, getting lunch and going to the store just casual things. Then throughout the night we are watching movies together relaxing seperatly on the bed, and then we decide on some horror movies to which she scares easy and jumps a lot and I come up to sit next to her and have my arm around her. After a few movies she decides on going to bed and asks if I'm staying, to which, being how late it was I didn't feel like driving. So I say yes and we share the bed basically sleeping next to eachother and the occasional cuddle where I guess we can call it spooning. It was really comfortable too. But nothing more than that, we just slept together without actually sleeping together if that makes sense.
Sorry for the long post.
Updates
+1 y
So as an update, the next morning we went out to take her 4 year old to watch the new jurrasic world movie, and she's normally really jumpy during intense scenes, so she was tapping on me and my arm whenever there was a moment or something that would pop out, and it turned into we ended up holding hands throughout the movie and she would squeeze every time things popped out. So there's also that.
So what kind of platonic friends do you fit in to?
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