Oliver walked back out to Percy after he put everything in the way. He knew his flying her bothered him. Hell, it'd bothered Oliver. But it was already done. Getting back on the broom this soon to show Percy he could fly safely without a problem wasn't the solution either. Percy might just bind him and get him home istead of watching another display.
"And neither of us died!" he exclaimed, now happily. Oliver could ever stay in a bad mood long. Once he got the emotions out with flying or some other way, he tried to bury it somewhere inside him. He'd taken Quidditch way too seriously at Hogwarts, gotten into a few verbal fights, and knew once he went pro he wouldn't stay pro for long if he kept it up. His personality had shifted, and he'd like to say he actually matured. But there were moments of a temper trantrum on the broom, like Percy had witnessed.
"I closed everything up. No way out but Apparation. Just... I'll meet you there," he said, vaguly, yet still happily. He Apparated without another word to the place just outside of the Leaky Cauldron in Diagon Alley, not wanting to risk Sam or anyone else seeing him. Opening his eyes, he headed straight inside and dropped down at the nearest, empty table.