What is a peach blossom robbery? What's the difference between peach blossom robbery and peach blossom luck?

In our daily life, we often hear that "someone has had a peach blossom robbery". What is "Peach Blossom Robbery" and what is "Peach Blossom Robbery"? The simplest way to distinguish is: those who are married or have a fixed couple are "Peach Blossom Robbers" and those who have no couple are "Peach Blossom Robbers". What should a lover do when he encounters a peach blossom robbery? This is what many people care about. It can destroy a perfect marriage or break up a family.