Why would a guy say you're mean to him when you aren't?

Why would a guy say you're "always mean" to him when you're actually always nice to him? Why would he joke that you're "mean" to him when all the two of you do is joke with each other/act playful? Same guy also joked I was "hurting his feelings" when I joked about not wanting to see him. He was talking about us seeing each other next time and I jokingly said no and that one day was enough of him for me (I was honestly just kidding and my tone of voice indicated that - I wasn't being mean at all).

So why would he tease me like that and joke about me being mean to him and hurting his feelings when I wasn't actually doing anything negative?

Why would a guy say you're mean to him when you aren't?
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