Why is this person ......?

acting strange. This boy that likes me acts strange around me but nobody else. But only acted like this because I wasn`t there one day. And usually when we both are going through an entrance he usually lets me go first but today he went right in front of me. And he started to say $hit about me to these girls to make them laugh. Then when I was going to wait on one his friends with my friend he was waiting too then he leaves with his friend and goes there`s no way I`m walking with that skid mark. And he checks me out all the time. And he even stares and gives me googly eye,What is up with this 8th grade boy?