Just days before he would turn 29, Matt Wetherbee was anxiously anticipating one of the biggest moments of his life—proposing to his longtime girlfriend, Kaitlyn Kiely, after she returned from an upcoming weekend trip. Instead, Matt would spend his birthday in a hospital undergoing spinal fusion surgery.

On June 7, 2016, the Massachusetts native was playing his weekly basketball game in his local men’s league, when a routine drive to the basket turned into a life-altering play.

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“The defender stepped in and I tripped over his leg and the wall was, unfortunately, very close to the basket,” Matt, now 30, tells PEOPLE. “I tripped and fell forward and I didn’t have enough time to brace my fall and I went head-first into the wall. I was conscious, and I knew something was immediately wrong because I couldn’t move anything.”

Matt suffered tears to ligaments and damage to the upper portion of his spine, leaving him completely paralyzed from the shoulders down.

Image zoom Kaitlyn Kiely and Matt Wetherbee HOTSHOT

While he is still paralyzed, what followed has been nearly two years of intensive therapy and electronic stimulation in the hopes that one day he will be able to rise from his wheelchair on his own. All the while, Kaitlyn has been by his side as they adjust to their new life together.

“We’re trying now to figure out how to navigate our new life, find our new normal, and we’re realizing the world is trying to adapt to the handicap population, but we’re still not there yet,” Kaitlyn, 30, says. “We’re sick of hearing ‘no,’ or feeling like we couldn’t live our lives the way we want to. If you want something to happen, find a way to make it happen.”

To show people with disabilities they can still be “crazy and brave,” the couple set out to participate in the Boston Marathon on April 16, where Kaitlyn planned to push Matt along the 26.2-mile route in his wheelchair.

Yet, the couple missed an “Athletes With Disabilities” application deadline and were unable to participate in the official race. Not all was lost, though, as the couple joined with HOTSHOT, a local company, to complete the Boston Marathon course the Monday before the world-famous event.

Image zoom Kaitlyn Kiely and Matt Wetherbee at the finish line HOTSHOT

Kaitlyn borrowed a racing chair and piled it with 50-pound bags of salt to train for the run. Week after week, she’d increase her mileage and the amount of bags she placed on the chair to get as close as possible to what pushing Matt in his wheelchair might feel like.

Then, on the morning of April 9, the couple set out on the hilly Boston Marathon course, with friends and family lining the streets to cheer them on along the way. Crossing the finish line five and a half hours later was a special moment for both of them, Matt says.

“That was definitely the best part for both of us. I was shocked to see how many people were there at the finish line,” he says. “We both got pretty emotional at the end. I cried, and that doesn’t happen often.”

For Kaitlyn, the run wasn’t just about making it to the finish, but about who she was with while doing it. She wasn’t just pushing her boyfriend—they were pushing each other.

“It’s an awesome feeling, but to cross it with the love of your life sitting in the chair below you and all of your family and your friends right there,” she says, “it’s probably the coolest thing I’ve ever done in my life.”

Image zoom Kaitlyn Kiely and Matt Wetherbee HOTSHOT

HOTSHOT then presented the couple with a $25,000 check that will go to Matt’s physical therapy center, Journey Forward, which specializes in helping those with spinal cord injuries. The couple also hopes to raise money for Matt’s therapy sessions, which can cost $100 an hour without the help of insurance, and have set up a fundraising page for those who would like to help.

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Since his injury, Matt hasn’t yet asked Kaitlyn to marry him as he planned two years ago. He is still waiting for that perfect moment, he says, and he has an idea in mind.

“I want to be able to do it myself, with my own arms. Depending on how long that takes, we’ll see,” Matt says.