Do you think he likes me or is he just bein friendly / kind.............?

Rite my crush is normally mean to me in the very playfull way and the other day he said we were in a different cl room so we walked to our next cl together but it turned out he got it wrong and we were in the same cl as always and i said to him we best get back b4 were even later to our lesson and he said no well just tell our teacher we got confused so we talked for about 20minutes then we started walking back to our normal cl then he put his arm around me and i looked at him and he said what im being nice and i smiled then when we got to our cl he gave me a hug for about 10-20seconds i went into my cl and sat down it took at few mins to sink in what had just happened and every1 in the class room saw us hug and 1 of my bffs said he fancies me and i asked how she knew she sed i can just tell but does it sound to any of you guys that he likes me oh and today he gave me his english book to look after because he left his bag at home and he wants me to keep it till tue.AH