My guess is it's medical. Either it's something recently diagnosed or recently occured that is severe and/or will take a long time to recover from (aneurysm, Lime disease, something wrong with one of her organs, broken limbs), or she's pregnant and just found out. To me that would explain all of the recent God-speak.
Those are the only things I can think of that would allow her to leave on good terms.
I don't think Kelli would be ok with her all of a sudden deciding to go on a mission. Even if it is a religious thing.
She isn't in school, and she'd quit her job in a heartbeat of they told her she couldn't be on the team.
I guess possibly it could be a family thing. I don't know what her situation. Maybe her parents died in a car crash and there's no one else to raise the little ones back in Utah?
Edited by SleepyJean, Jun 26, 2013 @ 12:19 PM.