"First," said Seamus, holding up one finger and attempting to look outraged, "I never said you'd be jealous of Ernie. I'm not that vain. Maybe I think you're looking for some Hufflepuff loving." He had to pause to hold back a snort of laughter at this last phrase, which was ridiculous even for him. "Second," he added another finger, "even if I meant that, I was thinking about pure and noble things like who gets to provide me with food and make sure I haven't forgotten what the outside world looks like. You know you'd get in a right tizzy if someone else were looking after me." Though he said this with confidence, it occurred to Seamus that maybe he was wrong - projecting his own feelings of (purely platonic) jealousy whenever someone else stepped in to take care of Dean and make Seamus superfluous.
He leaned back on the counter, swaying a little closer to Dean as he did so. "Sometimes there isn't room he complained. Dean had once stashed it over head-height in one of Hogwarts' narrower nooks and crannies. After multiple failed attempts to transfigure a stool to sit in the space, Seamus had ended up taking his broomstick down in a secret midnight rescue operation. It had been pretty fun, actually, even if he did get caught by Filch. Seamus had long held that no Gryffindor should make it through their entire Hogwarts education without at least one detention. At least his wandwork was a little better now. He frowned, his brain catching up with what Dean had said. "Hang on. Susan thought you were jealous? Of who?"