Help! I like my best guy friend!?

I have liked this guy for a while now, and we have been texting a lot and we talk in person and he calls me all the time too. At prom we slowed danced for a song and then we just saw a horror movie with a group of friends and we sat next to each other and I guess kind of snuggled? (If that is the word for when I cowered into him when I was scared haha) Yet when we hang in a big group with all of our friends he doesn't really show any emotion..... I don't mean to sounds desperate or crazy, just confused. Does he like me the same way or is he just being friendly?