Ted: Look, Natalie, there's something I have to say and there's no good way to say it. I wanna break up. I don't think you're the one for me. I don't want to waste your time because I really like you. I wanna do right by you, and I think the best way to do that is just to be honest. I'm sorry. Just let it out. They're only tears. [Natalie throws her spaghetti at Ted] Aah!
Natalie: I'm not the one for you?!
Ted: I'm sorry. I just thought the mature thing to do would be...
Natalie: It's my birthday!
Ted: Yes, I know I didn't realize that it was...
Natalie: It's my birthday and you're telling me I'm not the one for you?
Ted: It's really not such a big deal. I mean, it's the odds. It's like you lost the lottery.
Natalie: Oh, so dating you is like winning the lottery?
Ted: No, no, no. I didn't mean that.
Natalie: Okay, So what's the problem?
Ted: It's... I can't explain it.
Natalie: Try!
Ted: It's ineffable.
Natalie: I'm not "f-able"?
Ted: No, no, no, no. Ineffable. Ineffable means it can't be explained.
Natalie: Oh, so I'm stupid?
Ted: Oh, God, what's going on?