I found out, Heathcliff.

4 seconds sound clip from the Wuthering Heights (1939)) classic radio play.

You can hear this line at 00:50:04 in the radio play.

Quote context

[...]

- No. No. I'll not comfort you. You deserve this.

- Heathcliff, don't break my heart.

- I never broke your heart, Cathy. You broke it.

- My tears don't love you, Cathy, they blight and damn you.

- You loved me. What right had you to throw my love away for the poor fancy thing you felt for him?

- I found out, Heathcliff.

- Misery and death and all evil could never have parted us.

- You, you did that alone. You wandered off, like a greedy child, to break your own heart... and mine.

- I know, Heathcliff. Oh, forgive me.

- Oh, Cathy, your poor wasted hands. Oh, why didn't someone tell me?

[...]