I bet the old guy is Su-ah's alpha dad

i don’t think so bc when they first met i’m sure there would’ve been a diff reaction. but if he did punch his probably dad and his probably dad still went behind his probably sons back to get with juhhyeon that’s just foul

That's a good point but to be fair everybody was distracted and emotions were running high. The old guy was focused on Juhyeok before he got his shit rocked and Su-ah was focused on protecting his man and getting him to a safe place. They didn't really have time to be like "You smell like me are we father and son?" Cuz remember Juhyeok said something about the old guy smelling familiar. Plus old guy seems like a player so it's entirely possible he has a kid (or more) that he doesn't know about. And having him be interested in his son's omega might be the drive for character growth somehow.