@sycamorecottage
When the men booked, did they specifically ask for seats either on their own or not with a female passenger beside them? Surely there was somewhere else on the aircraft that they could have sat, which would have been beside a lone male traveller.
Well I hope not because where would that end?
People being able to request they don't sit next to gay passengers, or BAME, or disabled or wearing clothing that shows they're of a different religion?