B.F.W.O.C.
B. F. W. O. C. is when someone tries to be your best friend without you knowing. It’s like someone trying to take your throne without asking.
My friend's girlfriend said she's my best friend. She's not. She just wants my attention.
My classmate said he's my best friend. He's not. He just wants my seat.
My uncle said he's my best friend. He's not. He just wants my allowance.