A wonderful song I heard today

This is a song called "Why did I fall in love with you..." by DBSK, some Korean band. They're like backstreet boys. Anyways. This song is very beautiful.

The lyrics goes like this as the lover of a boy marries a different person and he watches her go in front of his own eyes...

Why wasn't I able to convey to you?
My feelings that were growing everyday and night
The words begin to overflow
But I know they wont reach you now

From the first day that I met you
I felt like I knew you
And the two of us melded together so naturally

Wherever we would go, it would be together
It was so natural for you to be with me
We became adults together
But you chose a different road

Why did I end up falling for you?
No matter how much time has passed,
I thought that you would always be here (but not anymore)

Today, the day that holds a special meaning
The day that you stood with a smile of happiness
Praying to God in your beautiful appearance

With the person next to you who isn't me
The image of you receiving blessings
How could I just stand aside and watch...