God, y'all need to get that pesky stick out of your arses if you think their relation ruins their ship. I for one ship them harder than ever.
On a side not...very convenient, super secret, hidden, curse-wielding, non-lethal-to-mortals, god sealing sword out of the blue..............well, I guess still better than suddenly turning Nanao into an uber badass who surpasses Shunsui in power the first time she fights.