I'm reading Andrew's Brain by E. L. Doctorow. In this paragraph I have some difficulties:
... but your moodiness, she said, I don’t know, that’s so unusual, a powerful thing, almost like your way of life. And it’s such a personal way to be up in front of a class. It almost seems like a strength, like someone who has an affliction and is brave about it. When it’s just, I don’t know, a worldview that’s very solemn.
And I said: Briony, I think if we carry this as far as I’d like to, I will end up depressing you into marrying me.
Oh, how she laughed! And I with her. At that moment we were no longer teacher and student. She must have realized this because she grew quiet, not looking at me. She made a ceremonious thing of unscrewing her water bottle and holding it to her lips. I detected the faintest flush on her throat.
I don't get the bolded phrase. Does he mean that "If we go on like this, I'll make you that much sad that you'll marry me?" or something like this?