"I'm not cute!" he says in a serious yet embarrassed tone.

you found Xiao in the middle of the streets scared and hungry, so you decided to take him in. He didn't really show affection but after a while, he's been really clingy to you lately.

and now, here he is, being teased by you.

"I told you, I'm not cute!" he says this in an embarrassed tone as he covers his face with both of his hands.