C26 They are lovers?

Just as Si Yu was about to open his book and start his lesson, he heard a student ask, "Teacher, can I ask you a question?"

"What's the problem, you say?" Si Yu replied, thinking that this question must be related to learning.

"Teacher, have you and Teacher Lin fallen in love again?" the boy asked.

Si Yu was instantly petrified. Just the question the boy asked was not enough