Moving On

How can I just sit here and watch.
Watch you move on and love another
See someone else touch you.
I can't even stand the thought of it.

Seeing you with another woman
Is more than I can imagine.
I know I have to let you go.
Let you move on with your life.

I can't give you what you need.
I'm married and can't leave this life.
Can't leave it, even for you,
The love of my life.

I've tried to quit wanting to be with you,
Or even thinking of you
Every time I do, I just want to die
I don't know how to move on.

How do I get past this?
Can I really go back
To my life before this?
Is it possible to move on?