The season ticket holder said the team embodies the humility of people in Oklahoma.
"The Thunder [is] so humble," she said. "They have to work hard to get where they are, game by game, grinding it out."
Mosby, 26, works at JJ's Pizza Stop in Norman. That's where she was Thursday night as she was watching the game.
"Nobody lost faith until the final moments," she said.
She was working at the bar, and the patrons were cheering as if they were watching it at the arena.
Mosby has about a dozen Thunder shirts for each of the playoff games she's been to, and she even nabbed a signature James Harden beard shirt from Tree and Leaf before they were sold out.
"You've got to have a wide variety in your Thunder wardrobe," she said. "Everyday I'm Thunderin'.'"
Emily Arrowood and the Thunder dogs
Forget about face paint. How about dying your dogs?
Meet Max and Sadie, a 4-year-old Maltese and Yorkie mix and an 8-year-old Maltese, who are fondly referred to as the "Thunder dogs."
Emily Arrowood, 13, explained why her dogs are so brightly colored.
"My mom decided if we win [the Western Conference Finals], I'll dye my dogs," she said.
The 13-year-old from Norman came to the airport with her friend Yazmeen Ryan, 13, and Erica Robinette, 22.
The girls sat with Max and Sadie in the grass away from the crowd of people pushing toward the stage to greet their team. They held up a sign with orange-and-blue lettering that read, "Thunder dogs love you."
Rosala Erwin, 33, will soon welcome her daughter, Issibella, into the world following what she considers an exciting basketball season.
"They're still great, even though we lost," Erwin said. "We've always been fans. Having the Thunder builds us up more; the city needed them."
Erwin said she had an early contraction on the way to the airport.
"I'm pretty much ready for it," she said. "I would just be sad if I went into labor because I couldn't make it to see the team."
Erwin came to the event with her three children. She wore a T-shirt that read, "OKC Gonna Rumble." Her fourth child is due July 3.
Her son, Manuel Paramo, has never been to a game, but he said Durant is his favorite player. Paramo came to the airport wearing an oversized Thunder hat and carrying a basketball.
"I like how he shoots and runs up and down the court," he said.