My Ex's friends unfollowed me both at the same time today after I shared a story on Instagram and it has been 4 months since we broke up but why?

Why did they do such a thing after 4 months? Why did they unfollow me I was very kind to her besties and they were kind to me aswll but why a girl's friends unfollow her ex after time?

My Ex's friends unfollowed me both at the same time today after I shared a story on Instagram and it has been 4 months since we broke up but why?
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