I pretended not to notice, day after day, month after month, while you were making a public laughing stock of me.
7 seconds sound clip from the Dead of Night (1945) movie soundboard.
You can hear this line at 00:50:32.311 in the Blu-ray version of the movie.
Quote context
[...]
- Peter, I haven't even seen Guy. Anyhow, you know we've always treated him as a joke.
- Yes, I know we've always pretended to, but I knew what was going on all the time.
- Nothing's been going on, you know that as well as I do!
- But this time, I've had enough! And I'm going to punish you as you deserve to be punished.
- Peter. Peter, darling, are you all right?
- Sit down, let me have a look at it.
- Look at the mirror. How did that happen?
[...]

 Dead of Night (1945)
 Dead of Night (1945)  Phantom of the Opera (1943)
 Phantom of the Opera (1943)  Scooby-Doo, Where Are You! (1969)
 Scooby-Doo, Where Are You! (1969)  Halloween III: Season of the Witch (1982)
 Halloween III: Season of the Witch (1982)  Knight Rider (1982)
 Knight Rider (1982)