The hurt tears my flesh with the razor in my hand

A stab through the heart,
A wound is shown,
No blood comes out,
Just a scar through my heart,

Watching your fun where me down,
A tear turns to ice,
And my heart turns black,
Closing my eyes I wonder why,
What leads you o put me through such agony?,

The kisses are stuck deep inside,
But the smiley face I cannot find,
A way to hide your stabbing wound,

This pain won't stop,
And the blood doesn't show,
But the scar stays on,
From you flirting with your ex,

I am dying inside however I lie,
Pretend I'm fine to keep us together,
The hurt tears my flesh with the razor in my hand,

Your hurt makes me do it,
Don't blame me,
You were the one who made me hurt inside,
But my heart still loves,

What do I do?
Do I dump him and run?
But then wouldn't that would hurt me too?,

What do I do?
Do I stay and pretendit's alright?,
But then wouldn't I be lying to us both?

What do I do?