Can't be forgotten

I used to live a lonely life.
A world so vain,
With the colors: black and white.

I use to sing a song forlorn,
Sad, empty, and meaningless
As they say.

I use to travel the world on my own.
Say it's adventurous,
Though I know it's a sad journey.

But then one day you came,
Brought nothing in my life but glee.
You're the one who puts a smile on my face.
You're the one who saved me from a mess.

You're my best friend.
And I must say this to you:
You can never be forgotten.