After quarreling, lovers are black with each other, but they all write a hint of hope and reconciliation in the blacklist signature. Why?
My aunt said it well: you have to have a deep hatred to completely erase a person from your world and black him out. So don't be hacked. At best, they stopped talking. They are just strangers, which means they still love each other, but they are particularly uncomfortable. No one will apologize.