Zhai Sheng was Qiao Nan's first marriage and Qiao Nan was Zhai Sheng's first love.
As Qiao Nan's first love, Zhai Sheng naturally found Chen Jun not pleasing to the eye. He also hoped Qiao Nan understood that Chen Jun couldn't be compared to him. The only thing that Zhai Sheng didn't consider was the bold Qiao Nan's face could change when she found out about Chen Jun's illness.
How were his thoughts more important than Qiao Nan? As such, when Qiao Nan became frightened, Zhai Sheng couldn't help but blame his jealousy. He wondered if his IQ had been affected by the three children recently as he had been playing with them more frequently.