I think it's the first time I've read a SiWook. And you...woah! This was heart crushing, so tragic. *cuddles Wookie and Wonnie* Poor bbs.
My favorite part is probably when Ryeowook gets addicted to Siwon.
It's really well written. The order of the sequences and the whole plot. Your logic matches mine. (Ah, I can't express what I mean...Damn lack of words. Something like: If this was my fanfiction, I would've written it exactly like this.)
*clicks imaginary thumbs up button*
Keep on writing! You know you want it!...XD *runs away*