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Out of the worst moment of his life came the best.

James Costello, a victim of the Boston Marathon bombings in April 2013, married a nurse who helped him recover after several surgeries for burns and shrapnel. Costello, in a “Today” interview with fiancee Krista D’Agostino last fall, joked then: “One thing that she hates that I always say is I’m actually glad I got blown up. I wish everyone else didn’t have to, but I don’t think I would have ever met her if I didn’t, so I’m pretty happy.”

D’Agostino met Costello while she was doing a six-week temporary job at Spaulding Rehabilitation Hospital, to which he was transferred from Massachusettes General. He invited her to join him at a benefit for bombing victims and that was, as they say, that. He proposed to her last December during a 10-day trip to France that was part of a “Heroes Cruise” for first responders, their families, and victims of the bombing that was sponsored by a Boston travel company.

“I now realized why I was involved in the tragedy,” Costello wrote on Facebook at the time. “It was to meet my best friend, and the love of my life. Eight months later I’m happy to announce that we will spend the rest of our lives together.”

Costello was walking toward the finish line with friends when the bombs went off and three of those friends each lost a leg. Like Costello, two others were badly burned and wounded by shrapnel.

“I had noticed her in passing, and shortly after that she came into my room to cover a lunch break and change the dressing on my leg, and still no thoughts of [romance],” Costello said. “Then, after we realized we had some mutual friends, we started talking, and I invited her to a benefit.”

Costello and D’Agostino were married at Boston’s Hyatt Regency, with the hotel and vendors donating their services. They’ll pay that forward, announcing  (via the Boston Globe) that they will make a donation to the Semper Fi Foundation to help give a military couple with a wedding.