Does this guy like me?

Ive been liking this guy ever since the end of freshman year but we have never talked to each other. Its my sophmore year, and I started to like him because I thought he was attractive and liked me back. He just seemed to be around me a lot. These are the following reasons why I think he likes me :

He trys to walk beside me in the hall

He acts wierd and nervous when around me

Ive seen him stare at me beforelsewhere

His friends stare at me

My friends caught him looking at me

He tries to make it non obvious he is looking at me

We have NO classes together and only see each other in the halls or pep rallies. We were friends on facebook, but I found out he unfriended me because I looked him up and their was an “add friend” sign by his picture. I dont know why he did. Im trying to ignore him to see what he will do, and he just walks right in front of me in the halls and glances back several times. Its like he is still always around me. It seems like he is not trying to avoid me. This guy is sooo confusing. Is he instrested or not? Should I continue to like him or move on?