Well, to be fair, Dojin actually knows Siwoon and hasn’t liked him since he was little, hahaha. So of course he finds it suspicious, especially because Siwoon was always glued to Byul.
And honestly, it’s pretty normal for him to be furious when he has just found out that his 17 year old alpha son is dating a 17 year old alpha who calls him “Father” as if they were already married, hahaha. Not because he’s an Alpha, but what is Siwoon doing calling him Father? Who even comes up with that hahaha, besides it’s already clear that neither Dojin nor Hyesung care that he’s an alpha, they just want to protect Byul.
But his reaction is so funny because he reacted exactly the same way, even down to the dizziness, as his own father did when he met Hyesung and baby Byul.
This is your karma, Dojin.
Foe the upcoming episode I don't think Dojin is being crazy because he's dating or dating an alpha. But more because he's an overprotective father lol that's literally it. Oh and any parent wants to know if their kid is dating and how far they've gone. To protect them. To provide sexual education and safe sex information needed including they worry who their kid dates because of their mental and physical health. I can understand him from the perspective of a parent. Because he wants to protect Byul from EVERYTHING. Even heartbreak if it's possible. But he also needs to breathe and take a chill pill lol he doesn't need to call out boy a BRUTE without even knowing him. And don't yell at him cause he called you father LMFAO