Ultimate Sin

You asked me to love you
I gave you my word
In every breath
'I love you' I heard

Your heart, you kept open
for me to come in
my mistake was made then
the ultimate sin

A lifetime of love
cut short by a whim
you made it quite clear
you wouldn't share me with him

Standing alone now
thinking of the past
with you by my side
it was meant to last

The blame is all mine
I have nowhere to go
I will never escape it
the guilt will always show

Forgive me, I ask
from the bottom of my heart
I never wanted this
to tear us apart