Deeper poetry for the more advanced swimmer

Wonder

It's a wonder,
Dark blue thunder,
That you never take my life.
It's a simple little riddle,
But still I call it mine,
And we were happy,
So very happy.
And then there came a day,
I called it once upon a time,
Yet that day is the only one,
I want taken from my mind.
Should I die today and loose you,
Know that I'll always choose you,
You're the one and only one I could call mine.
But if you want to leave me,
Or if you haven't even seen me,
That's alright,
That's alright.
I only ask just one thing,
That you always try to be happy,
Even without me.
You'll be fine,
I'm sure you'll be fine,
No reason to cry,
Dry your eyes,
It'll all be fine,
With a little time.