@rienaissance I think this is how they've always been, like Dojin just taking Hyesung back despite him always saying and doing mean things, also, It's clear that Hyesung is focused on Byul not hating him because he was not able to parent him properly at the beginning. I'm not saying is ok or normal but I think is just the author showing that they're adults now and that maybe Hyesung doesn't feel as affected as he used to do before, now that he has experienced the same feeling of "needing to leave despite having a child".