Questions: Girl's Behavior

never apologize

so I've been friends with this girl for about half a year now and always had a tiny little crush on her but nothing crazy and it never got in the way of us having a great friendship. But recently we had a dry period of about two months where we became distanced due to no mutual classes and busy schedules. I wanted to fix this friendship so now that it's spring break I invited her over to watch a light hearted movie. The hangout was going well and then we started to get a bit closer on the couch. I started playing with her hair and she then laid her head on my chest so I could be more comfortable doing so. this was kinda crazy and having the weight of her head on me while we watched started to reawaken my feelings and I got butterflies. I even started telling her how nice her hair was and that I could do this all day, even caressing her head a bit too. this went on for like 10-15 minutes and she even stayed on me after the credits started rolling. this was a really awesome moment for me but the following 2 days she just acted like nothing happened. she is still talking to me like im her friend even calling me bestie so that is pretty much telling me its over. I asked if we could watch another movie since I had one in mind and she responded to me pretty unenthusiastically saying maybe sometime but she was very busy and she isn't free for over a week. if there's any advice or interpretations of this behaviour id appreciate it because its not looking to good for me.