No! She was in three or four episodes I think, maybe more, actually as a character. I don't want to spoil it but you don't ever actually see her and she's got a bit of amnesia but theirs no mistaking her.
Wow that's some crazy history. :( Gaav will probably demand some explanation when or if when it comes up. Poor Xellos seems to feel things so deeply and personally, just remind him that Gaav always is a gruff, rude but honorable, action first and feelings second Lord please! :D
Now I will get back to actually responding to Xellos.