New book focuses on quarrels by couples

Blue classified common quarrels between couples into 15 types, including evading one's responsibilities, household chores and psychological problems influenced by original family.

Li also believes that the quarrels are because there are inner desires that have not been satisfied.

"Therefore, quarrels help to dig out the desires and couples can develop new ways of getting on with each other based on their discoveries," says Li.

The Wright couple also provide six techniques and analyze them in their book to tell people how to "effectively" quarrel. And through the further elaboration by Blue and Li, people get to know that a quarrel itself is not beneficial, but understanding the reason for it and promoting understanding between each other is helpful for relationship.