Of Forgiving and Forgetting

Forgive and Forget - goes the age old but true saying. Often followed by many, attempted by many more. But do we Really forgive and then forget? Or do we forgive and Really forget? Here is my simple-but-may-be-thoughtful interpretation of the same:

I guess the latter question is a bit easier to think upon so let me take it up first. At times, we do forgive be it for any reason -
-To get rid of the problem/person for the time being
-To ignore the problem/person
-To protect oneself from future contingencies arising out of the current situation and
-At a very few instances - Forgiveness from the heart.

However, the point here circles around Forgetting. Often we tend not to forget in the situations cited above except for the last one at times. There can be n number of reasons for forgiving but not forgetting. Man has this nasty little thing called Ego which doesn't let him forget so soon. Also, he has this big bad feeling of if-he-hit-me-he-will-be-hit-harder. The badley-ki-bhavana, to put it in a desi way! Hence I feel Ego and the Feeling of Revenge are prima facie the hottest reasons for Forgiving but not Forgetting.

Coming to the former and the more important one - Of Really Forgiving and then forgetting. I guess the chances of forgetting are more once you forgive! The reasons to forgive, as I've posted above, are many. But do we genuinely forgive in the true sense of the term?

Forgiveness is a Virtue. Not forgiving (obviously not a virtue, duh!) I think, is backed by:
Craze for Revenge - I think, Craze for Revenge is majorly when one is badly hit (not literally though!) by the opposite person's words/actions for a long period of time.
Sadistic pleasures - Aah...I guess persons having this reason for non-forgiveness are simply crazy! No comments!
Self-benefits be it monetary or non-monetary - This is the most common reason after Ego. Man at times, cannot bear to spare even a rupee and wants to take full opportunity by not forgiving, thereby saving his pocket!
Ego - I firmly believe the social animal as well as all the savages have Egos, Man being the highest stake-holder of this big bad junk! Ego is the topmost reason for not forgiving the opposite person. The only way out is Attitude - in the right way I mean! And the only source of change is - YOU. Hope I've let your mind ticking on this! :)
There are times when we just Cannot forgive the opposite person without any reason as such. How ambiguous man is!

Would like to make a respectable mention - Of simply forgetting! Time heals all, they say. That's the trick. Simply forget. Donot see the person you do not want to forgive and/or forget for some time. Or divert yourself from the scene/tension/irritation. Give yourself some time. And lo! All forgotten as if you've been struck by the 'Obliviate'*  spell by a wizard! 
But I strongly support Forgiving and Forgetting, even though there were times I couldn't implement it. May be I was a victim of the reasons above? Or I simply chose to forget? Well that calls for another self-check!

* Refer the link on the word Obliviate.