Best male friend is avoiding me after he kissed me. What could be the reason?

I know there are too many story like this and I should probably talk with him about this whole situation (which I'll do soon) ...

So my best male friend kissed me about two weeks ago (we were sober) and when I asked him why, he only said: it be like that when a person starts liking someone and he kissed me multiple times during the day. But now he's to avoiding me. Like, he let's me know that he receives my messages on IG and SC but never replies like he used to do. He doesn't show up when I want to see him or is looking for excuses. He doesn't call me like he used to and I am not ready *yet* to talk about it cuz I'm scared that I might ruin our friendship. He also used to talk a lot about our future and so on. Guys or Girls: What do you think of that and why could he possible act like dat? yeah, love's complicated.
Best male friend is avoiding me after he kissed me. What could be the reason?
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