"Yang Ziju, this is my cup, it's so disgusting."
"I don't think you're dirty. Why do you think I'm dirty?"
"Because I'm cleaner than you."
"Well, I'm fairer than you anyway."
Love is a matter between two people, but it is not a matter between two people. Two people are together, but when they separate, one often leaves first and the other stays where they are. If two people stay where they are but are not together, what kind of trouble would that be?