Forgive and ForgeT? or Revenge and Regret?

There are basically two kinds I've come across..

The ones who forgive and forget and the other who don't!

While the former glazes through life leaving breakups and regrets behind , with the hope of a better tomorrow, the latter holds on to the past and evaluates everything the future holds in terms if the past memories. Even the smallest mistake you do with a person who never forgets will be written in big bold letters in the book of your relationship and will be referred back and forth every valid and invalid times.

Hence evidently forgive and forget is the way to be if you want to enjoy life without the dark shadows of the past.

But in todays wild world, there are some others who take advantage of this Forgive and forget trait. Just because we move on with life more easily, people tend to think that they can get away with anything ,cos we'll forgive them and get along as if nothing happened. So then it becomes important that forgive and forget be always accompanied by assertiveness, so that you don't allow anyone to make you feel inferior or victimized.

So then how should it be ? ...  i guess even the universal rules need to rewritten to face today's unforgiving world.

Forgive and become a door mat? or take revenge and be called a fighter?? .... what to be and what not to stays a mystery!!!!!