Here's a refined version of your text to improve flow, clarity, and emotional depth:
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When Madisyn entered the company, she was taken aback by the crowd. The place was packed with both new and longtime clients, and the space itself was impressively large, almost reminiscent of Ethan's Sprinterz company.
She scanned the crowd in search of Joey, her father doing the same. Some clients Joey had won over, thanks to his father, stopped by to say hello. Oscar didn't hold any resentment about Joey "stealing" his clients; in fact, he seemed quietly proud.
Then she saw Joey. He was dressed in an elegant gray suit, holding a glass of wine while talking to a man. When he turned and caught sight of her, he froze, clearly surprised. Excusing himself from his conversation, he made his way over.
"Hi," he greeted, looking at her and then at her father. "I didn't think you'd come. I wasn't expecting you."