
Just cause her grandson was a fruitcake, she thought that meant every dude in westeros played for the same team

Tywin: the only thing that might turn my stomach is details of your grandsons nocturnal activities. Do you deny them?
Olenna: oh not at all, a sword swallower through and through
Tywin: A boy with his affliction should be grateful to marry the most beautiful woman in the kingdom
Olenna: did you grow up with boy cousins, Lord Tywin?
Tywin: Of course
Olenna: and you never....
Tywin: No.
Olenna: Not once?
Tywin: Never. Your ppl seem to have a high tolerance for unnatural behavior
That whole exchange was