Gu Zhixing couldn't think of any movie that said, "Everyone wants to control their lives, so they believe in all kinds of safe promises." In fact, there are no safe promises in love. The only one who can control is himself.
Gu Zhixing's concept of love is the same as Summer in "500 Days with Summer". She only loves two things. The first is her long black hair, and the second is that she can easily cut it off.