The reason Lin Fei told Li Ke's parents that he was Li Ke's boyfriend, in this situation, was the only viable option.
Imagine, if he and Li Ke weren't in a relationship but appeared in Li Ke's room, and even shared a bed.
Her parents would definitely see him as a pervert, then call the police and have him sent to the station.
But if he said he was Li Ke's boyfriend, then it all becomes reasonably understandable.
Li Ke's parents took a while to snap back to reality. They looked at Lin Fei, then at Li Ke.
Li Ke's mother looked at Li Ke and said, "Is he really your boyfriend?"
Li Ke immediately looked at Lin Fei, and Lin Fei gave her a signal.
So, she said to her mother, "That's right, he is my boyfriend."
Li Ke's mother had a hint of surprise on her face.
She had always hoped her daughter would be with Shen Tao, and suddenly learning her daughter had a boyfriend was understandably surprising.
"Why have you never told me you have a boyfriend?" Ye Qin asked her daughter.