Misunderstandings happen in life which can lead to some wrongs in one's right. Maybe a friend doubted you or the neighbor gossiped about you. It can be someone dear sometimes; like your mother, sister or son. People can hurt each other by actions or words whether they did it on purpose or not you will feel bad about this. At this moment when they realize that they come to apologize.
They ask forgiveness and want you to be pleased with them again. Forgiving others is a noble thing but some people seems to be taking this as a tool to get what they want and let you bo please on them too.
When someone makes a mistake or be unfair to you anyhow then you don't forgive them that means you are not pleased with what they did to you. The opposite is right. If you do forgive them that means whatever wrong thing they did to you is okay and fine by you.
I'm not saying not to forgive anyone who was wrong to you. What I'm trying to say that before you do so, look into the person's action. Was is on purpose ? did he mean you by it? Or it was just another misunderstanding and didn't mean anything more than doing it in the wrong way ?! I think this is really important. Because those who don't want to be unfair with you deserve to be forgiven but for those who just insist on hurting you shouldn't be. They don't care about you all they think about is their selves and that everyone is pleased upon them.