We have all done things that we regret and when you love someone, you do not bring those up and you surely do not get historical.
Most people feel that when someone does something wrong, they are owed something or we keep a list of all the wrongs. This is what forgiveness is all about. When you forgive, then you release them from that debt that you think you are owed and you do not bring it up later during arguments or what have you.
Does this mean you forget when someone has wronged you? Absolutely not, but what it does mean is that you do not hold it against them.
Why do we hold on to those hurtful things? Some of it is pride, or it is materialistic damage, or it is revenge for something, or it is due to humiliation, or they have an axe to grind.
So what do I mean about getting historical? People will retain those things that have hurt them most and when they get angry, out comes the list. They will start accusing, then they will recall all the painful memories, and what they left with God they did not really leave with Him.
While there is no way to be God, that does not mean we cannot strive to be like Him. When your sins are forgiven, they are wiped clean as though they never happened. This is what love means when it says it keeps no record of wrongs.
This is difficult because we for some reason want to relive all those hurtful times instead of forgiving them and letting them go. There is a reason why people say forgive and forget. It is not to truly forget, but so you do not keep bringing it up when you get angry.
Forgiving they way God forgives is not easy for us, but we need to learn to trust God and leave it in His hands. There is no one on this planet that needs to learn this more than I.
Do you struggle with forgiving/ keeping a record of all the wrongs that have been done? I know I do at times. Then, I really urge you to sit down and talk to a Christian counselor and pray to God for help. While I may blow up, get it all out, and then the argument is over, that does not mean I forget what happened and I have been known to get historical when I get really angry or very drunk and angry (which is not often).