Wrong Choice?

I stabbed myself with blinding hate
& in that moment chose a fate
I wanted you, you wanted her
Sequential details were a blur
You needed her you thought you knew
Frustration boiled, what to do?
I was right there, as plain as day
For some reason you chose to say
"I love HER with all my heart
Things between us MUSTN'T start"
That day I chose to cease to be
Because you chose her over me.