Looking Back lyrics

Lookin' back over my life
I can see where I caused you strife
And I know, yes I know
I'd never make that same mistake again
Lookin' back over my deeds
I can see signs wise men heed
And if I just had the chance
I'd never make that same mistake again
Once my cup was overflowin'
But I gave nothin' in return
Now I can't begin to tell you
What a lesson I have learned
Well, lookin' back over the slate
I can see love turnin' to hate
And I know, yes I know
I'd never make that same mistake again
Once my cup was overflowin'
But I gave nothin' in return
Now I can't begin to tell you
What a lesson I have learned
Well, lookin' back over the slate
I can see love turnin' to hate
And I know, yes I know
I'd never make that same mistake again

Submitted by Guest

What do you think is the meaning of Looking Back by Marty Robbins?