Question

Cause he knows? The mom told him where he went.

I thought he didn’t know and that why he had someone trying to track him down? And he eventually learned MC was staying with the mom, but the mom said she didn’t tell him when he was?

Hes not trying to track him down. Well, at first before the mom told him where Gyuha is, he was tryna track him down but afterwards he was tryna track down the woman who Gyuha might have gotten pregnant.