Why did my crush say he hates me?

Okay so I was walking by and my crush laughed and said "I hate her" but the weird thing is that he likes me back and I know he does because he even said it himself before but now I don't understand why he is being weird and starting to be kinda mean to me but also I've noticed that he has a friend that apparently likes me, this shit is so weird and I don't know what to do, I feel very sad, I don't know what I did to have him say that.

Why did my crush say he hates me?
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