I need a book for a special friend (something optimistic)?

[Exk!amationmark]

the thing is, i have a friend who got involved in many misunderstandings in her life earlier
it 's like this: a girl sitting next to her don't like on of her friend and often talk bad things about her friend. she then tell her friend to avoid seeing that girl. however, for some reasons, those two started to get along and they accidentally discussed about things she said. then they blamed her for trying to deceive them, and she others started to think about her as a lier...
since then, she lost her trust in people and tends to retreat to herself.

i want to get something to cheer her up...
but i don't know what to do?
it 's now hard to even try to talk to her...
so i planned to get a book

can you recommend some?
and the summarized story, perhaps

this is really urgent.
thanks
can you summarize the story for me?
that would be a great help

thank you!
she is 18, so don't pick books for kids
>_< i forgot to mention this

 

[mimi]

it might be nice to write her a poem or something since she's special to you

 

[mark]

"the blue day book" - works like a treat