The Hints That Reveal Margaery's True Intentions on Game of Thrones

Following the union of the High Sparrow and the crown, Olenna is completely baffled by Margaery's sudden change of heart. She asserts that her granddaughter must stop this nonsense at once, but Margaery stuffs a note in her hand and insists this is what she wants. She tells Olenna to leave.

The small note is merely a drawing of a rose, but it means quite a lot. It's the sigil of House Tyrell. It must be Margaery's subtle way of intimating where her true allegiance lies.

We may not know what Margaery's plan is, but she definitely has one. And it's only a matter of time before it rises to the surface.