Smooth moves, Zen.
S.A.K wrote...
A line from the leak.
"Tali falls to her knees, crying."
Just reading this line made me sad. I hope I don't see it in my play through.
Given that my previous "SPOILER" tags were largely answered and discussed without further tags, and nobody got into a fit crying about being spoiled, I think I'll dispense with them, save maybe a short sentence of warning. Like this one...
I'd say that I hope this isn't the line for if you side with the Geth and she watches her entire race annihilated... But I'm pretty sure you shoot her in that case. *cringe* I'm pretty sure I read lines that sounded like she was gasping for dying breaths...

So if it *wasn't* that, then it *could* be if Shep dumps her... That was a lot of trust to break. Though, she may just start convincing herself she's Quarian and has too much baggage and that it's completely understandable he'd leave her, as that *is* like her.
Honestly, it might not sound too good, but the best place for that line that I can think of is if Shepard sacrifices himself/does the other very disturbing thing that would seperate them forever, to stop the Reapers.