[Marileangorifurnimaluim]

Hm. I like these questions. They touch on the nature of the rings, and the nature of Galadriel.

There are two questions here:

1 - Would Nenya change, and if so, how?
2 - "Would Galadriel throw it away, now that she had the One Ring?" What would Galadriel do with her 'spare' lesser ring?

The answer lies in the nature of the One Ring. Since it gives power according to the stature of its bearer, it obviously acts differently with each owner. If Galadriel's long use of Nenya attunes that ring to her (or vice versa), then Nenya could be more closely tied to the One Ring if Galadriel had the One Ring. It could possibly make it stronger, or warp Nenya. The Elven rings were unsullied by the hand of Sauron, and freed from the influence of the One Ring while its wearer hadn't much power. Were Galadriel the Dark Lord (Lady?), clearly that would no longer hold true. For Nenya at least.

As for what Galadriel would do, we have to go back again to the nature of the One Ring. It's manipulative, that ring. It bends and corrupts wherever it can find a weakness, rather than creating weaknesses that aren't there.

So what are Galadriel's weaknesses?

The first is her pride.
Currently it is queenly dignity and a regal bearing, but it could easily grow to be someone whom you dare not cross under any circumstances. (Think 'Queen of Hearts' in Alice in Wonderland.)

Second is her loyalty to Elvenkind, especially her kin.
She did not swear Feanor's oath, but she left with him. That kind of loyalty could become bigotry and repression of other races. Perhaps even slavery and revenge for wrongs long past.

Third is her desire to preserve the past.
Yes, that can be a good thing. But can you imagine if preserving the past meant suppressing anything new and different, unvetted by her?

These are her main 'faults' that seem ripe for twisting by the One Ring.

In that case, her strong desire to preserve the past would dictate that she would wear both rings. It's unlikely she would trust that all-important preservation to the hands of another.

If she had Sauron's personality, she would give it away to ensnare another. But they are very different from eachother. Sauron desires power. She desires control. They're not quite the same. Those who desire power know you can increase it by delegating. While Galadriel would become Middle Earth's worst kind of micro-manager.

So the One Ring would dominate Nenya, corrupt it, and work in concert with it. Even if the Dark Lady Galadriel were defeated, you would probably never free Nenya from the influence and corruption of the One Ring.

- Maril