Truth about lying

Is she lying,
Or is she right,
I don't know what to believe,
Would she lie to me,
Just to hurt me,
Or is she trying to protect me.

If shes right,
Hes wrong,
And I'll never forgive him,
If shes right,
I'm wrong,
And I'll never forgive myself.

If shes wrong,
Hes right,
And I'll never let him go,
If shes wrong,
I'm right,
And I'll have to let her go.