Even for the most hardcore of Harry Potter fans, Professor Dumbledore is still something of a mystery. While he's one of the most loved characters, he's also one of the most questioned - even Harry himself didn't know anywhere near as much as he had hoped about the Hogwarts headmaster.
When JK Rowling revealed that Dumbledore is, in fact, gay, every fan wondered how they'd never realised before. Now, nearly 10 years after Harry Potter and the Deathly Hallows was published and Rowling made the announcement about Albus, the author has finally revealed exactly who he was in love with - and it's another revelation.
First, here's a little back story. In Harry Potter and the Deathly Hallows, we learn about the evil Gellert Grindelwald, Voldemort's predecessor who was almost as evil as the villain himself. We also discover that Dumbledore was a friend to Grindelwald as a boy, and the two conspired together.
More recent fans of the series will know Grindelwald from Fantastic Beasts and Where to Find Them, in which he destroys New York City. With Dumbledore set to make an appearance in upcoming instalments of the film, now is the perfect time to pull out a classic, yet underrated Rowling statement:
"I always thought of Dumbledore as gay . . . Dumbledore fell in love with Grindelwald, and that added to his horror when Grindelwald showed himself to be what he was. To an extent, do we say it excused Dumbledore a little more because falling in love can blind us to an extent? But, he met someone as brilliant as he was, and rather like Bellatrix he was very drawn to this brilliant person, and horribly, terribly let down by him. Yeah, that's how I always saw Dumbledore."
Of course, hardcore Potter fans will already know this, but with more Fantastic Beasts films coming our way soon, the relationship is set to be more of a key storyline than ever. For fans, this means unearthing even more of the Dumbledore backstory - and we can't wait.