She said “yes!”

Daniel Koh, Boston Mayor Marty Walsh’s chief of staff, proposed to his girlfriend, Amy Sennett, after the two crossed the finish line of Monday’s Boston Marathon together.

The couple were running in support of The Martin Richard Charitable Foundation.

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Koh planned to have friends hold several signs throughout the end of the course. In order, they read:

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 …

Then, Koh popped the question.

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Congrats to the happy couple!

Click to see the best moments of Marathon Monday >>

Thumbnail image via Twitter/@marty_walsh