I think this push for forgiveness is bound up with the notion of closure isn't it - you can't attain this goal of closure without forgiveness.
It's a kind of bureacratic neatness. And life isn't so neat.
Controversial thing to say, but it's what we are told is a male way of thinking - compartmentalise, put it in this box, deal with it, put it away, don't let it leak out, move on.
And IRL you don't put something away - it becomes part of you, it changes you, influences you, yes you move on from it, but it's never neatly done and over and finished with is it? Every now and then it comes out of that non-existent compartment and touches something else in your life and makes you reflect on it in light of whatever the something else is, or makes you reflect on that something else in the light of it, IYSWIM.
I am in a rambly mood tonight. 