This guy is so hot and cold towards me I dont know what to feel about him, help?

This coworker and I have gotten close, and anytime we close we argue a lot and when we drink together it's worse (but it's more playful arguing never full on yelling) but if the resurant starts to say we are "boyfriend and girlfriend" he gets mad and closed off, but if a week later goes by he's fine and talks and chills out. He also wanted to hangout this Friday but he only asked me when he was drunk, I don't know he's so odd and I need help

This guy is so hot and cold towards me I dont know what to feel about him, help?
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