It’s bc of the double standards, dojin himself dated alphas before but said siwoo and byul shouldn’t date bc they’re both alphas too UncleMikami
It was explained that he knew it was serious between the two and he didn't want to let go of his baby. It is clear from the fact he went out with alphas that he doesn't discriminate against alpha couples.
I’m glad they called out dojin’s bs lmaoo