Mayor Walsh’s Chief Of Staff, Dan Koh, proposed to his girlfriend, Amy Sennett, at the Boston Marathon finish line! She said yes after running the 26.2 miles on a cold and rainy day!

Here's a photo of the happy couple before the run, Amy is none the wiser of Dan's plans for her!

POPSUGAR reported on the surprising moment for Amy, and the beautiful words he had for her. Dan is a smart man, made even smarter by his well-thought-out plan for the proposal.

"Every .1 mile starting at mile 24.8, a different friend held up a poster with a message to the couple. Each of the 12 posters had a line from a poem that Koh wrote for Sennett," reports The Boston Globe.

"Amy, you've changed my life

We've been through it all

From Boston — (Kaya!)

To DC — (M Street!)

To New York — (Cramped Studio!)

To Philadelphia — (Talula's Garden!)

. . . and back.

There's a lot we have left to learn

But I know one thing for sure

I love you, and will love you, forever

You're the answer to all my questions

But I have one question left to ask . . ."

The pair crossed the finish line together, at 03:38:39. Dan's boss, Mayor Marty Walsh had the honor of presenting him with an engagement ring so that he could pop the question to his girlfriend of six years. The moment was completed a bouquet of roses, and the answer everyone was waiting on; YES!

Amy is the vice president of international strategy and assistant general counsel for the group seeking to bring the 2024 Summer Games to Boston. Can I get an AMEN for this power couple?!