There is no "trumping" in the Bible..it all fits together like a fabric. You can not disregard any of it parts to favor others or you are plucking out the parts that you like and throwing the rest out.
Anyone can do that to fit anything that they like. It doesn't work that way.
BTW, as a practical matter, MOST of the people who "sin" against you are not going to repent.
In fact, in many cases, such people will either not be aware of what they have done to you or will be of a different opinion as to events. If forgiveness REQUIRES repentance, humans beings would be overflowing with anger toward their fellow man.
It takes a small man to walk around with a heart full of unforgiven anger over past slights against himself...a very small man!
And to add insult to injury, how can a man approach God and ask for forgiveness when his heart is full of hatred toward his fellow man.
Sorry...but you are dead wrong on the subject of forgiveness.
In fact, you are the only Christian I have ever encountered who argued as you have about non-forgiveness.