What Does Zi Mean by Warmth?

"Hey, Zhang Qiling, do you never smile?" "..." "Don't you feel cold?" "..." "Will you die if you say something?" "..." "I'm sorry I was wrong." "..." The girl stood up and left. The man's eyes flickered for a moment, then calmed down quickly. Then he lowered his head and continued to study the broken map. Suddenly, there was a blanket on his shoulders. "Hey, good night, little brother." There was still the expected silence. Three seconds later, the blanket was returned. "I want coffee." He hurriedly handed over the coffee. "Marker." Peipianpian brought it to hand. "Refill." I was angry. "I quit, Grandma Zhang Qiling! I won't fight you tomorrow!" "Yeah." Ten minutes passed. "Uncle, I was wrong... Can't I fight with you..." I was about to cry. Why did Mao find out our private money and throw it away when he couldn't speak well?!!!