When "Li Luo" put on Ka Suo's ring, her hair turned white, like that of an immortal of the Ice Clan (also, um, her name changes to Li Jing? Maybe?). Her eyes, though, stay dark brown, and do not change to the blue more characteristic of the Ice Clan. It didn't seem to come as a surprise to anyone, either. Neither "Li Luo" nor Ka Suo panicked. However, it didn't seem to have been mentioned beforehand.
Why was this? Clearly, marrying into the Ice Clan does not change the hair color of an immortal (for instance, Lian Ji). It seems like it must have been a property of the ring.
But what's going on? Did Ka Suo somehow give "Li Luo" some portion of his spiritual power? Did he make her immortal, even (despite her eye color staying the same)? Was it just a cosmetic change, and if so, why?