I don't get why the fault and finger pointing is only towards Taejun?
Unlike a lot of omegaverse, where Alpha is dumb and doesn't communicate, Taejun even tells Geonwu that he wants the truth, he can tell that Geonwu is lying and said he'd take responsibility for the baby. It is Geonwu who thinks he knows what's best for Taejun, concealing the truth so he doesn't harm Taejun's "reputation".
Yes, I don't agree Taejun's forcing Geonwu at the end but none of this 'angst' would have happened if Geonwu would stop running away even after Taejun expressed how much he means to him. Yeah, he's a dumb-dumb saying "friend" this and that but to Taejun, that 'friend' means a lot to him because he doesn't trust anyone else.
Anyways, scared for how S2 will start... someone hold my hands >.<""
Nanjo found and realized his sadistic and masochistic kink through that 3some but refuses to believe it until the end of S1 I believe. He's always just 'given way' to Mokyeon in S1 and in a sense 'played victim' to the blackmail but I honestly think he wanted it deep down the pain, thrill and also the control as a bottom.
It will be interesting to see his POV soon.