I've seen this movie dozens of times, and tonight for the very first time I picked up on something I had misconstrued before.

The morning they stage the breakup scene, Cindy starts the conversation by saying something to the effect of "I did a little thinking, I think now is the time we had our little talk.....about us, you know you, me" (paraphrasing of course).

I always thought she was just starting the phony breakup, but now I realize (at least I think) that she was making another attempt to get him to see that there was something between them. The way she said it "Us, you know you, me" and her tone - it didn't seem like she was trying to end it.