Follower Count?

To those who own an insta/twitter account, Have you ever wondered why some users unfollow you? After setting up my own insta account just this year (Yes, I know thats kinda late), Ive seen the number above 'Followers' drop by several notches over the past months. My follower count does not bother me. But what really does is why that number drops from time to time. Did I post something that you may have found offensive? Or perhaps I posted too many pictures in a week till it annoyed you? For me, I believe that the reason why people unfollow others on instagram, is to make themselves look popular. How, you may ask? By making the 'Follower' count exceed the 'Following' one. Through this way, other users who happen to view this particular person's profile, will probably wonder, "Wow! There are more people that know this guy, than the guy knows himself!He must be real popular." or "This girl has soo many fans, she must be really well known in her college." My hypothesis might be one of the numerous reasons why people unfollow others on platforms like twitter or instagram. Or it could be complete false. What I'd love to hear, is your personal opinion on this matter! What might be the ulterior motive behind why people do such things? And perhaps you could share your personal experience regarding this? Faux