Theodore hated being called 'Teddy'. It was horribly degrading and completely disrespectful, and although he had originally planned to target Llewellyn with his new purchases (in the event that he had been home), Demelza had managed to join in on the irritating little name game and had earned herself an embarrassing sweet. The result itself had been... awkward. Theodore watched the entire scene play out with a big, self-satisfied smirk, and with surprisingly little regret or remorse. If he was going to feel extremely annoyed, she was going to get hers. The entire mean prank made an unsettling amount of sense to him at the time.
"Demelza Robins. I don't think I've ever heard you swear," Theodore responded annoyingly, leaning back into the couch he was lounging on and crossing his arms. He was trying very hard to remain as mentally separated from this incident as he could, because anything else would just come off... creepy. She was going to be disgusted with him enough as it was. No. He had not taken inappropriate pleasure in watching that. It was just a prank. A wonderfully embarrassing prank. "I just gave you a candy, and apparently, you really enjoyed it."