beta
Love (that involves respect and trust) cannot be about lies, secrets and manipulation until you're forced to tell the truth. We understand why Taehon hid the truth from him but it was wrong. Period. He had time to tell Sejun the truth and he didn't because of his guilt over a terrible secret. He was a child then and a victim, yes. But so was Sejun. And as adults Taehon chose to treat Sejun as if he was still 5 so he could perform the rescue he couldn't then but in the process made Sejun a victim of others machinations and manipulations all over again.
He has every right to feel betrayed and to conclude that Taehon was only using him. If for nothing Sejun should have had the choice of deciding if he wanted to become this emotionally entangled with someone connected to the most traumatic, painful part of his life. I for sure wouldn't. There is not enough therapy money or good dick in the world.
(I mean OBV I want them to end up together. I am here for the fucked up storylines and over the top angst. But if Sejun heard this story and his reaction was "OMG, you really do love me. " I would have thought he was deaf or crack addled.)