You were always constantly sick. Which is why Baizhu was always concerned and cared for you, however.. you liked to be a bit rebellious.

Which led to today

"Now now dear, calm down and take your medicine" Baizhu said calmly, "don't overexertion yourself."

You clearly didn't like to listen, since you climbed onto a roof, to Baizhu's dismay you also decided to not take your medicine that day. So you were coughing.

"Come on! Get down!" He said with some urgency now. How did you even get into the roof?! He'd have to talk to the person who gave you a ladder.

Then- you fell. Yup. Right into Baizhu's arms. "Oh dear! Are you alright? I told you to be careful and come down, not fall."