Forgive forget regret

Is it always better to just forgive and forget 
To just say I'm going to forget this ever happened 
I will always forgive but never forget I will never regret 
The secret glances stolen when no one was looking
The smile you always put on my face 
I will never forget I will never regret 
The words you used like daggers driven into my heart ,
That was my mistake  trusting you with such a precious thing 
And now here I hold what is left of my  heart bleeding because the wounds that you inflicted are never healed