- You deserve better than me.
- I know what I want.

3 seconds sound clip from the Shockproof (1949) movie soundboard.

You can hear this line at 00:40:11.297 in the Blu-ray version of the movie.

Quote context

[...]

- I can't offer you the expensive gowns, the expensive times that Harry Wesson can.

- But I do love you, Jenny. Will you marry me, Jenny?

- Oh, no. You don't know what you're saying. It's no good. It couldn't work.

- Is it still Harry Wesson?

- No, it's not that. It's just you don't know me.

- You deserve better than me.

- I know what I want.

- You know something? You're the first man who ever asked me to marry him.

- I know we can't get married right away anyhow, until... But you could say yes now, couldn't you?

- Okay, Jenny, you think about it, but you know how I feel.

- Yes, sir?

- You have a ticket for me. Harry Wesson. For Havana, Flight 615.

- Just a moment, please.

[...]