I seem to recall Ami shedding t.ears in Vanuatu at tribal as a last ditch effort to save herself and win over Eliza. Amanda and Cirie both don't seem to have a reason to cry at tribal, especially Amanda b/c of Probst's comments that she "patches things up" with Ozzy (what was there to patch up...? They seemed to be fine last I checked, minus a few remarks from Amanda about Ozzy's arrogant attitude.). The only plausible person left is Ami because Eliza doesn't go to Tribal.