"And it would make you second guess yourself, wondering if there was something about you that made him admit to himself he was gay." Buffy said, though it might have been a bit of projection on her part and what she'd think.

"I get why they cursed him with a soul. Totally get it because they wanted him to feel the pain of what he'd done as a soulless vampire but the lose it again part, not so much? Sure they didn't want him to be happy, but to let Angelus loose on the world again? That was just dumb."

She had a flash of seeing Angel's soul return to him just before she put the sword in him and sent him to hell. It saved the world, but Buffy would always feel guilty for that and would never, ever tell Willow her spell worked at that moment.