Wife and I have upcoming flight to South America in a week. We are both Ex Plat with fairly similar EQDs. We applied SWUs to the trip and are confirmed on the outbound portion. The return is starting to look dicey at J3. If 1 seat opens early, do they hold it or offer it to one of a couple traveling together or skip down the list to a single traveler. Is there any advantage to splitting our PNRs so she can get the upgrade if only 1 comes available?