Im bi and i want to know if this guy likes me, help?

He probably did like you and you just messed it up by saying he acts bi around you. You should never share what a person says or acts around you if you really care about them. Maybe he was gay or bi and he wasn't ready to come out but he was ready to have a thing with you? Next time learn how to keep your mouth shut when someone shares stuff with you, that's how you build a solid relationship.