My crush (guy) gave me a dirty (mean) look?

okay, so I'm gonna try to make this as short as possible... okay so I was going to meet this guy at school.. my friend had informed him about me and all that so when I was going to meet him, I walked into his classroom and he gave me dirtiest look... then! a few weeks later he told my friend to tell me that I should come to one of his games... what exactly does this mean ? like how come he gave me a look (like he wasn't interested) then tells my friend that I should go to one of his games...

2 hours ago - 4 days left to answer.
My crush (guy) gave me a dirty (mean) look?
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