Is he dating someone?

"So, it was done by Myung Hee that time?" Cho's uncle asked Kang Soo who nodded. Cho also agreed with Kang Soo.

"Uncle, if he had not divorced me then, Myung Hee would have told dad about this but she did not keep her promise and told dad about our relationship," Cho proclaimed. 

"Soo, in both ways it was your fault to marry our daughter. It does not matter now who told Hyung-nim about the truth. The thing is he trusted you a lot and when Cho came home, crying, Hyung-nim was dejected. Do you really think I will allow you to date Cho again? You do not even know how much she had suffered," Cho's uncle expressed his concerns. 

Kang Soo lowered his head. "I know. I made the biggest mistake of my life. I will repent through my actions not words," Kang Soo asserted.