Been thinking this since way before the flashback but I think Lorkan is the priest Ian was raised by. That is such toxic sibling behavior to find your brother's boyfriend in his new life cycle and raise him to be your little caged bird. But also this flashback could've been an email forreal.
His mom told him not to use his brain in front of the grandpa so he wouldn't want to fight for custody of him. He said bet, I move in silence. That was really too genius of them.
Why does there always have to be another motherfucker coming in when there's finally progress (╯°Д °)╯╧╧ (︶︿︶)=凸