We learn why Rin broke up with Haru and about her family.
Why Machi wrecks the student council room. (oftenly)
And we learn some of Yuki's past and how he thinks of Tohru, as a mother or a lover.
Book 14 of Fruits Basket starts with Chapter 70.
In the whole series of Fruits Basket, there are 23 volumes. So, my guess is that their are 23 book in the boxed set.
Fruits Basket volume 6 begins with chapter 31 and ends with chapter 36.
The manga can be bought online, at Barnes and Noble, or Borders.
you don't want to spoil it do you? well, you can read a little summary on this website: http://heavyink.com/graphic_novel/12412-Fruits-Basket-Vol-21
Fruits basket book 21 is the first kiss 6 would be the only one when Kyo-Kun means to hug Tohru... book 22 the second kiss book 23 last pages is when Kyo and Tohru are married.
Yuki kisses Machi in Chapter 136 of Fruits Basket.
Chapter 37It Ends With 45
Yes. In volume 21 and 22. And in the second fanbook.
Hiro appers in book 7 chapter 37
it starts with 25 and ends with chapter 30
Not an episode but in last book they show how most of the characters end up.