Eniel remembered this situation. Many times, during the wars of the past, he'd encounter groups of Fallen with his fellow Demons. They'd mock and torture them, calling them horrendous names and degrading their beings. He had always watched from the sidelines, watching as the subordinates under his command would carry out one of the Central Dogmas of Demon Law: Only pure demons may join the ranks; except under the most dire of circumstances.
No. He was tired of it. Even if Willow was his enemy, Eniel believed that all his enemies at least deserved negotiation, or an honorable death.
He tried to reason with Thea.
"My Lady, spare the child such a disgrace. Yes, she is of the enemy, but can't her recruitment be considered? She has so much potential as our ally..."
"... if you would not grant her quarter, then I shall kill her myself."
Eniel raised his spear, pointing it at her chest.
He could at least give her a quick, painless death, to minimize the terror and suffering of what Thea implied...