This song is called "Happy Birthday" by Yangjie.

Don't know what to say,
except i love you,
Don't know what to do,
if there's a thing or you,
Don't know what to say,
when i'm feeling grey,
Don't know what to give,
but happy birthday.

I said happy birthday to you bii,
sometimes i dont know what's your feelings to me,
But i know bii you must love me,
No matter what's the phase,
just happy birthday.

I dont want another girl,
to tell my feelings to.
I dont want another day,
to tell you happy birthday,
I dont want another girl,
to tell my feelings to.
I dont want another day,
to tell you happy birthday.

This is a song i wrote for her when we're still together. Although her birthday is still 2 months away, but i've planed everything for her. I have high hopes on our relationship, but it never turn out the way i hope. Well, it's all over now.