Lana: You seem really excited about the dance.

Clark: I am. But between the tickets,
renting the tux, and buying flowers, it gets expensive.
Doing all that makes it expensive?
Lana: You should try finding the right dress. I guess the limo's out. There won't be enough money for it?
Clark: I'm actually thinking of asking Lex if I can borrow his.
Chloe said she doesn't care, but deep down (He knows deep down
or she wants it deep down?) I know she wants one.
"Between..." Yes. I'm not sure how this preposition came into use in this kind of expression - I suppose the imagery is of the person trapped between all the items listed.
"Between shopping, cooking special dinners, wrapping gifts, and decorating the house, most women are exhausted by Christmas Eve."
"out" - here it just means "out of consideration." I can't tell from this snip whether money is the reason or not.
"It's supposed to rain all day tomorrow."
"Well, I guess that means our romantic picnic in the park is out. Want to go out to dinner instead?"
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Thanks, D! But there's another blue that kind
of disappeared in the process of my bad Internet connection.
This "deep down" is poorly placed. From context I assume he means that he knows that Chloe really, deep down in the unexamined recesses of her heart, wants one. But the sentence is badly written. It could mean that he is the one with the deep down knowledge.
Yeah, a real confusing one.But thanks anyway, D![Y]
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