Forgiveness does not mean you forget unless you have a brain wash. The brain has a way of remembering things, but that does not mean you have not forgiven. Although if you are still holding the offence against the person and continue to refer to it, you might want to examine your heart to see if you truly forgave the person.
“So, watch yourselves. If your brother or sister sins, rebuke him; and if they repent, forgive them. If they sin against you seven times in a day and seven times come back to you and says, “I repent,” forgive them” Luke 17:3-4.
"For if you forgive other people when they sin against you, your heavenly Father will also forgive you. But if you do not forgive others their sins, your Father will not forgive your sins" Matthew 6:14-15.
"Surely the arm of the Lord is not too short to save, nor his ear too dull to hear. But your iniquities have separated you from your God; your sins have hidden his face form you, so that he will not hear" Isaiah 59:1-2.
Do not be deceived: God cannot be mocked. A man reaps what he sows" Galatians 6:7. If you have not forgiven the person, you have the reason why your prayers are not answered.
Settle With One Another
“Therefore, if you are offering your gift at the altar and there remember that your brother or sister has something against you, leave your gift there in front of the altar. First go and be reconciled to them; then come and offer your gift.
Settle matters quickly with your adversary who is taking you to court. Do it while you are still together on the way, or our adversary may hand you over to the judge, and the judge may hand you over to the officer, and you may be thrown into prison. Truly I tell you, you will not get out until you have paid the last penny” Matthew 5: 23-26.
We assumed that it was okay for us to ignore someone who felt hurt by our actions because we did not see it their way. They might have read more meaning into what we did or said, but as along as they felt hurt, we should make all attempts to apologise. Our actions were not meant to cause offence but they did, according to the offended person. "If it is possible, as far as it depends on you, live at peace with everyone" Romans 12:18.
If we ignored the person who was hurt and they cried unto God to judge, he would listen. Would you not listen if your child returned home to you and told you, through tears, that someone hurt them?
"Then He (Jesus) said to the disciples, "it is impossible that no offenses should come, but woe to him through whom they do come! It would be better for him if a millstone were hung around his neck, and he were thrown into the sea, than that he should offend one of these little ones" Luke 17: 1-2.