Guy acting weird. Advice please.?

okk so theres this guy i used to work and go to school with and we have been pretty good friends. well tonight he puts his arm around me and was playing around with me like rubbing my arm and he even was rubbing my hair and telling me it was soft. lol. well i was outside standing at my car and he didnt even come over to say bye which is sooo not like him. i think it might have been bc i was talking to a friend?! im not sure tho. what do you think?