After seeing Allie that day, something inside Noah snapped.

6 seconds sound clip from the The Notebook (2004) movie soundboard.

You can hear this line at 00:57:13 in the Blu-ray version of the movie.

Quote context

[...]

- Stop the bus! Stop the bus.

- Sorry, Mac, I can't stop the bus until I get to the depot.

- No, no, no, please stop the bus now. Please!

- Do you understand English, pal? No one gets off till we get to the depot. Now sit down.

- Watch it, screwball!

- What are you doing?

- After seeing Allie that day, something inside Noah snapped.

- He got the notion into his head that if he restored the old house where they had come that night, Allie would find a way to come back to him.

- Some called it a labor of love. Others called it something else.

- But in fact, Noah had gone a little mad.

- Excuse me. It's time to eat. Lunch will be served in the Sun Room today.

[...]