Why he blocked me after I like his instagram story?

Anonymous
There was this boy i i found on the followers of a friend because i kept seeing him while walking around in my town. So i followed him and he sent me a follow request then he unfollowed me few days later. After that i liked some of his photos just to show my interest towards him and he only viewed my stories as i viewed his as well because i kept following him. Then i unfollowed him and kept on follow and unfollow him a couple of times and he blocked me. I deleted this account and from my main instagram i only viewed his story and like one of his stories and he blocked me. He seemed single because i have seen a photos of him with his now ex girlfriend that he deleted time ago so he's definitely single.
Why he blocked me after I like his instagram story?
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