I checled just now and i dont have the bonding options unlocked, but im pretty sure i am at max 'like' for both of them. Like i do the meditation and traning but i dont get anymore like from it.
I haven't even started it yet, I have to do the hunting contest first. I have been basically ignoring all quests until I raised my like enough with gunnar, but since the swamp isn't far and the unfinished relationship log for roushk has been bugging me, I figured I could do that too