busybody, aka 8, is the exccessive concern about a person or something that has actually none related to u urself but u keep asking something more and more in depth due to ?????? (the busybody him/herself dont even know what its the reason).

Concern it a case where u like to care for someone, just wanted to know if he or she still fine, okay or not, etc etc.
When someone ask u mind ur own business, dont be 38, none of ur concern/business,
they just dont expect u to concern for them, regardless they know or appreciate ur concern or not, u should just leave them alone then