Why my classmate guy talks to my frnds about me saying not so okay stuff but still sends me follow request on Instagram?

Anonymous
He is brother of my frnds boyfriend , he has talked about me to my frnds that I m very talkative and jolly Person I should speak less, my frnd told me about it but I just ignored then I saw him noticing me in my class a lot , many times he took advantage and teased me over the stuff I said , for example once my teacher told me to note the lecture and I was in a chaos that I have it already on my keybook why should I note it , so I unconsciously uttered "sir it will waste copy pages " , everyone laughed I regret but he kept teasing me for 3 days about it like ecem soemtimes he and some of his frnds would say " aww" on the things I do , I feel very angry but I ignored them but one day one of my frnd insulted him That he is crossing limit in teasing , why would he send me follow request on Instagram if he doesn't like me at all when he and I have such a bad impression on each other.. what's going on his mind.
Why my classmate guy talks to my frnds about me saying not so okay stuff but still sends me follow request on Instagram?
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