(I got way too into this one, lol, you're Edd's sibling based off 'The End')

you trusted him, your brother Edd trusted him, even after giving Matt a black eye, even after everything in the past, but when Tord finally returned and claimed that he'd be moving back in, Tom was hesitent and sketchy the whole time, but you and your brother gave a second chance, turning a blind eye, as the days went on, Tord became more suspicious, and Tom became more insistant, one day, Tom and Tord got into a fight

"You want my room? Take it! This place is too crowded anyway!"

Tom stormed out, looking for a new apartment, away from Tord, you and Edd shared a nervous glance, but still decided to trust him, it wasn't until later that day, while Tom was looking for new apartments that he found a 'Wanted' poster for Tord, AKA 'Red Leader' and rushed back home, with you, Edd, and Matt following, when you got back, Tord had shown his true colors, he had only come back for his invention, a giant robot to help take over the world

---

"Tord! I thought we were friends!"

Edd said in a sad tone, Tord looked at you, his expression softening for a split second, he never wanted to hurt you, but masked his guilt

"What do I need friends for when I've got this? I'm unstoppable!"

"Tord, no!"

a fight broke out, before Tord shot a rocket from his giant robot, flying off, but stopped and glanced back at you, his regret coming back