here's another one, this was a post-ep challenge :)
Answers
Dr Burke's asking her why, and all of a sudden, the words catch it her throat. If she actually stops and thinks about it, why does it bother her? Why shouldn't Castle be thinking someone's good at their job… even if she's young and pretty… why shouldn't he be seeing someone? She can't have things two ways, she knows that, she can't have heard what he said in the graveyard and not told him, and then not want him to be with anyone else…
"Because he's supposed to be…" and she doesn't know where she's going with that, so she trails off, because she hasn't really got a word for it. She doesn't know how she can begin to explain the relationship between her and Castle to Dr Burke, she's not really sure she can even explain it to herself. She goes for partner in the end, but she hates herself for it, because it's the safe option, and she knows as she says it that he's really so much more to her. She's taking the easy route out, and that's not fair to either of them.
The hideous flashbacks she gets every now and then are bombarding her, and she can feel his hands on her chest, and hear the words rushing out of his mouth, and see the sunlight through the trees. She can't make sense of this; she doesn't want to make sense of this, because it needs too much remembering.
"Kate… what are you really scared of… that he won't wait for you; or that he will?"
And for that she doesn't say anything, because she can't even give herself an answer yet.