"In this world, there is a remedy for everything, but there is no medicine for regret," he said solemnly.
"So you finally admit you regret what you did?" she interrogated angrily, but with all the fierceness of a startled cat.
"I've always regretted it," he admitted.
"Then why did you ever even do it?" she asked tearfully.
"I made a mistake, Thalia. Blame it on the hormones, young stupidity, anger, loneliness, whatever you want, but the fact remains that I made a mistake. A mistake I thought I could never make up for."
"And so you just left?"
"I thought... that's what you wanted."
"Keyword: thought."
