She deliberately acted this way just to let Song Yunxi see.
The meaning was to tell her: Old witch, you love meddling in other people's affairs, but I'm doing great with your nephew. Are you mad now?
Song Yunxi was, of course, furious, and she abruptly stood up from the sofa.
Fu Yin coyly asked Song Musen, "Didn't you say you were going on a business trip? Why did you suddenly come back? Did you miss me too much?"
Song Musen's face was incredibly unpleasant.
He roughly pushed the pair of arms off his neck and said with a stern face, "I have something to ask you."
Fu Yin's coquettishness faded halfway through, and suddenly she lost interest.
Song Yunxi let out a cold laugh, waiting to see a good show.
Instead, Song Musen grabbed Fu Yin's arm and forcefully dragged her up the stairs.
Although Fu Yin was unhappy, she knew for sure that something was up with Song Musen, so she didn't resist much and went upstairs with him.