Grey's Anatomy, Season 12

Alex:
I'm ready to get married. I have proposed to you twice, and you still haven't given me an answer. I bought you a ring. You told me not to get rid of it, so it's just sitting in a drawer, collecting dust.

Jo:
I know.

Alex:
No, I'm ready to be married, and I need to know when you will be ready. It doesn't have to be today or tomorrow, but I need to know it's gonna happen. I need to know that you're up for this, 'cause I am. Look, I'm not scared of being committed to you. I want to be married to you. But I'm done waiting. So I just need to know, will you marry me?

Jo:
Oh, God. Okay. Okay. I w... Alex, I can't.

Alex:
Of course you can.

Jo:
Alex...

Alex:
I don't need a big thing. I just need you.

Jo:
I'm so sorry, but... no.