Why are guys so confusing?

So this guy I work with always playfully teases me like he tickles me and starts pillow fights. He told me in a drunk message on Facebook that he liked me and then he told me the next day when he was sober still on Facebook. Since then he has been teasing me more but he keeps saying to other people we work with that he isn't ready for a relationship everytime he says that he looks at me as if he's waiting to see my reaction. Do you think when he said he liked me he was being serious or was it just because he was drunk?
Why are guys so confusing?
Add Opinion