Untying strings of the past

When you walk away
It's hard to let it go
…You'll understand
Maybe, some things aren't that simple

"Simple and Clean" Utada Hikaru

You leave without me
Not a goodbye or a see you later
Just a call as you leave
A wave over your shoulder.
Smiling as you leave,
Waving after you, heartbroken
Why? All because of you
When you walk away

I move on with normal life
The key word being 'tried'
Surrounding myself with friends
Reverting to what life once was
Trying, but you're on my mind.
You walk away with only a wave
That image stays in my mind
It's hard to let it go

Days grind by, turning into weeks;
Soon it becomes months, then years.
I recall you so clearly.
You're too busy with your new life; I guess
Who'd want to come back here?
To my boring, mundane life
If I saw you, you'd just smile and say;
You'll understand

I think it's time, I moved on
Dwelling on the past won't help
It will take time, slow baby steps
I don't want to forget, our past was good
But holding on won't help at all
I need to move on without you
I will miss you, but some things have to be done:
Maybe, some things aren't simple