He sent a flirty message then said jk and deleted it. what does this mean?

So my crush said that relationships start by asking people their favourite color because his classmate had a crush on this girl in his class and his classmate asked the girl that question. my crush asked me the question as a joke (I don't know if it was a joke or not) and then quickly deleted it and said JK. i said bru (was probably a mistake on my part) and he replied to it by saying I WAS JKING LMAO ITS CALLED RIZZ. he changed the topic about him impressing half of his classmates with his rizz and stuff, but basically he changed the topic. when i later scrolled back, he had also deleted the JK messages. what does this mean? also take into consideration that he is 14 and im also 14 and he isn't a very clever person nor is he the type who has deep meanings in his stuff (probably). what does all of this mean? does he like me or not? he also asked who i was talking to because i took a little extra time to respond to him cause i was drinking water. i also noticed that in the middle of our convos he goes offline for a while and later comes back only and then starts replying like nothing happened. if he would have a crush on me, he wouldn't do that right? and again he isn't very clever so i dont think he would do it to make me more attracted to him or yeah.

He sent a flirty message then said jk and deleted it. what does this mean?
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