Forgive or Forget

We were as one for a moment in time.
We let it slip and said goodbye.
I took you back once again,
not knowing where it wood end.
I liked you alot you liked me too.
Then this other girl came through.
You left me for her, my heart was broken.
I heard about the stuff you did with her,
that made me mad.
Then I started to feel real bad.
Like I did something wrong when I Know I didn't
NOw you say you want me back...
but will my heart be broken again?
Should I forgive or forget, I don't know,
I'm so confused.
So should I forgive or forget?
For if I do I don't want it to end in something I'll regret