Why did Chuan Zhi sell the house in Lin He?

Chuanzhi can sell his house in Helin, because the real estate license has Chuanzhi's name:

"Grandma Comes" is a family ethics drama produced by SMG Film and Television Drama Center and Shanghai, directed by Liangshan, written by Chen Baohua, and starring Sha Yi, Lin and Lin. It premiered on September 8, 20 10 Shanghai TV Channel.

The play is adapted from the decadent online novel "Mother-in-law is Coming", which tells the story of the tit-for-tat between the urban daughter-in-law and the rural mother-in-law after 1980s, and alludes to three different forms of mother-in-law: urban to urban, urban to rural, and rural to rural.

He Lin, a beloved Beijing girl, got together with Wang Chuanzhi who was admitted to Peking University in the northern countryside until her mother-in-law came and she competed with her for a man.

She and she, fighting for a family, the bamboo door is opposite to the wooden door, and the mother-in-law and daughter-in-law are born enemies, so some people divorce and some people jump off the building.

Irony is still endless. If you want to forget it and die for it, women will be embarrassed. Why do you always realize at the last minute that marriage is not a matter for two people?