What kind of more do you want? 
Mostly on her reasons of betrayal that forced her to go into hiding, because it made it to the Allanaki rumor boards.
First: Let me correct you in saying, she did not go into hiding! She lived happily in the scrubs, out in the open that anyone could have gotten to. She welcomed it! She hoped for it! But as it was played out ic, the bounty hunters that came to her died before they even got to her! Certain organizations made deals with her! She finally stopped living in fear. She was free!
Now as far as her desertion, and betrayal goes, and I will
try not to be too long winded about it. Ryali served with the AOD for I think it was about 15 years? In those years she faced execution quite a few times. She somehow managed to escape it. There was a certain Templar (that I will not get too in depth on) had it out for her. Yet, even through all the bad, she still tried to get his acceptance. I know, newb playing here, trying to get a Templar to accept them, but it made for some real good RP. At one point I think she had a little of it, and I am still unsure of what changed that. Anyway, she failed some tests she was given, a couple of recruits killed a private, which caused for her to get demoted back to Corporal, and after that, all of the unit turned on her. It was either, store, desert, or get executed, (which I am sure was next). Ryali was a survivor and would do anything to keep
herself alive.
I had to think long and hard on the decision to desert. Was it in her character to? How loyal was she to the Highlord? Could she really leave her oldest son behind in the AOD? It wasn't the first time she had thought about it, and after all the turmoil she had been through, I felt she had good reason to run off, and join the <redacted>. But if you think her story stopped there after she left, you're wrong! The Legions were on her ass like white on rice! As
only_plays_tribals said, some of those that were part of the <redacted> didn't trust her. A southern spy, they thought!
Ryali lived a long and crazy life. I haven't had too many pc's so it's not fair to say that she's the favorite one I've played yet. Let me run through a few more, then I'll decide, but I am happy if she at least was memorable to a few of you out there. I know there were a lot of pc's out there that stick with me in her story.