you're comparing apple to orange. In Water seven, they had their heart not fixed because they couldnt decide on whose side was Robin in. As for Killer's case, he was literally given the chance to save his Captaion by following orochi's orders, so he already had his resolution there. Zoro threw away his pride twice, to kuma and to mihawk, and now, you're saying killer couldnt do the same? that's a humiliation lol, poor Killer
you again are comparing apple to orange. Killer's case wasnt that complex compared to Nami's. Besides, when has Nami been shown of being mentally unstable?
his mental state was fine when he met luffy and zoro
So instead of being more motivated to save his captain he'd rather let his will down? Lol
you need dictionary to distinguish facts and headcanons xD
And by your logic, enma can swing on its own whim
what a joke