Seamus had the grace to feel a little guilty. He didn't ever want to be the reason Dean's face looked like that, not really... but it was also sort of fascinating. He was about to step in, to stop Dean from answering by pointing out that there is literally no hypothetical where Dean is going to have to choose one or the other. And then Dean went ahead and answered and Seamus felt a flush creep up his unfortunately pale neck.
"Knew it," he said, but he wasn't crowing as much as he thought he would. "And I love you more than..." He struggled to think of anything big enough to end that sentence. He never had a 'thing' like Dean and his art or Neville and his plants or even Harry and flying. He loved Kenmare, but nowhere near as fiercely as Dean loved West Ham. "More than I love West Ham," he finished, trying to make it funny by nodding his head over-seriously. Then he brightened, "And more than you love West Ham, too."
He waved away Dean's excuses. "You'd better actually tell me, this time!" He remembered - only too well - the time the damn phoenix had stayed hidden for nearly a month after Dean had forgotten to give Seamus this vital message.