
I can understand why people would be upset with Heesoo for lying to Dojin, but I can see it from the other side, too. Hyesung, at least for the time being, doesn't want Dojin to find him and them talking at this particular moment while Hyesung is still not fully recovered mentally and emotionally would accomplish nothing. Before they reconcile, Hyesung needs to do some serious soul-searching and decide he wants to go back on his own, not because his friends or Dojin try to force him to. That's why I feel like Heesoo is actually the best person for this. He hates Hyesung, so he's not going to encourage him to try to patch things up, meaning Hyesung is gonna have to swallow his pride, work through his fears, and take some initiative for once. It's an unlikely chance for him to grow and for Heesoo to finally understand that he can't control Dojin's relationships no matter how good his intentions are.

No one made Hyesung have a baby. Dojin didn't want him to have the abortion, but it was completely Hyesung's decision to continue the pregnancy and extort Dojin for money and gifts. If he wasn't ready for a baby he should've taken care of it. And now he doesn't know what's gonna happen to it since there's no guarantee that Dojin will actually want to take care of him. We as the audience know he will, but Hyesung doesn't. He's doing the same thing his own mom did to him: abandoning his child to an uncertain future to save himself. I don't hate Hyesung as much as other people seem to because I do understand that he's had a pretty rough life, but I can't defend how he's handled this whole situation.
I didn't know you could hate so many people all at once