My ex- got isolated out when she traveled home separately from me. I was on a business assignment in GVA, she came for part of the trip. Most cost effective way to get her ticket was award travel on a partner airline, so we came back separately.

There were, apparently, some odd looks by the Customs folks as they ransacked her bag and found it full of dirty underwear for the both of us.... I brought the rest of the clothes with me (better baggage allowance).