Stephanie, 23, is a communications associate. Matt, 35, is an audio engineer. They live in Silver Spring.

The Main Event: They’re getting hitched at the exclusive Mansion on O Street on June 29, 2013.

How They Met: When she moved to D.C., he was her housemate at her first sublet.

First Impressions: “He was a handsome older man who would never go for a young’un like me.” “She was a sexy young thing who would never be interested in an old, haggard gent like myself.”

First Date: A hike in Great Falls. How he Proposed: After a 15-mile bike ride on a 100-degree day in D.C.

Most Hated Clothing Item: “Some of her fanny packs are a bit dorky.”

Their Song: The classic song “Tonight You Belong to Me.” “Matt is a musician, and during our first summer together, we recorded a cover.”

Most Stupid Fight: When she closed a door too quickly “and nearly clipped the cat’s tail,” Matt says.

With Infinite Funds: Stephanie would rent out the White House for their reception.