It is amazing how we as humans forgive. Sometimes we forgive right away and forget. Sometimes we forgive and do not forget, so when it looks like the event/issue is about to happen again, we go off.
Forgiveness means to pardon. To give up resentment towards another. God is a loving God that forgives us of all our sins. You know the sins that we do not want people to know about, God forgives us. God see’s our destiny. God see’s what we will mature to be in Christ Jesus. So if God can forgive us, we should forgive too.