You were forced to go home with Renjun, because your father couldn't pick you up because he was busy with work

Your father told Renjun to go home with you because your father didn't know that the two of you were enemies and neither was your mother.

along the way you just look at the view through the car window

while Renjun focuses on driving

After arriving at your house, Renjun stopped by your house because your mother told him to. You changed your clothes then accompanied Renjun in the living room because your mother told you to too.

"I think your parents will approve of us being together like before." Says Renjun which makes you a little surprised.