A long sigh of regret escaped the lips of Aberforth Dumbledore as he looked upon a picture of the only woman he'd ever loved. She gave him a haughty look from the front page of the Daily Prophet, next to an article about her recent appointment to the Muggleborn Registration Committee.
Dolores.
They had met during her final year of Hogwarts. She had come into the Hog's Head with a group of her Slytherin dorm mates, and caught his eye immediately. She was lovely, her brown eyes sparkling as she engaged in a heated discussion about Muggleborns and how they'd be the downfall of the Wizarding World. He privately agreed, after Muggles had lost him his sister and father, so that was another point in her favor. When she came up to the bar for another round of Firewhisky, their eyes met, heat sparked in their gaze, and he knew he had to have her. She clearly felt the same as he; they snuck into the private flat above the inn and spent an enjoyable afternoon hiding his wand in her Chamber of Secrets.
They continued meeting each other during the school year, with her sneaking out as much as possible, and as soon as she graduated, she moved into the same little flat that she'd lost her virginity in. They spent two wonderful years together, he running the inn and she climbing ever higher in the ranks of the Ministry. He began to think that maybe he could share his deepest, darkest secret with her.
Then things fell apart.
He stared blankly into the fire as he remembered the disgust in her eyes. The argument that carried on for hours after. The blood quill he took up to convince her that he would change. The promise he made to her that night, that he would do better, that she was the only one for him. The promise he couldn't keep, in the end.
She had woken up in the early hours of the morning and found his side of the bed empty. This was highly unusual, so she padded downstairs and eventually outside to find her lover. She found him, with his pants around his ankles, his eyes wide with shame and guilt, and a squealing goat trying to escape. Eyes overflowing with tears, heart thoroughly broken, she turned on her heel and stormed away. That was the last he saw of her, except in the newspaper. He fell into a depression so deep that his once happy inn slowly decayed, becoming filthy and decrepit. His only companions his goats, until the love of his life exacted her revenge and had him brought before the Wizengamot for his indiscretions. They took his goats and he was left utterly broken.
He wondered, if the tragic ending of their relationship was the reason for this cruel and bitter woman glaring at him from the Daily Prophet. If he was the reason she had made it her mission to ruin his brother Albus' reputation and have him sacked from Hogwarts. He wondered if the world would have been a better place if not for his love of goats.
Aberforth sighed again. He closed the newspaper, the light from the fire glinting off of the long healed scars on his hand.
'I must not fuck goats'