How can you be engaged to someone you don't even know?

4 seconds sound clip from the The Curse of Frankenstein movie soundboard.

You can hear this line at 00:26:12.444 in the Blu-ray version of the movie.

Quote context

[...]

- It's because of Victor that I'm asking you to leave.

- He's conducting a series of experiments which could be extremely dangerous.

- What sort of experiments?

- You wouldn't understand, sufficient to say that.

- I would understand, I'm sure I would. Please, tell me.

- Believe me, I can't tell you, I would if I could.

- Then I shall have to ask Victor. If I'm to marry him, then I have a right to know.

- Marry?

- Of course, we're engaged. Didn't he tell you?

- How can you be engaged to someone you don't even know?

- It was an arrangement between Victor and my mother.

- That's absurd. You can't be expected to honor an arrangement of that sort.

- My mother and I were entirely dependent upon Victor. We'd have starved without him. Now, perhaps, you understand.

- I understand you're confusing gratitude with affection.

[...]