The way I see it, there are three people who you must love and forgive, no matter what. This is not to say that you allow yourself to be hurt by them, but only that you forgive and love them unconditionally, no matter what their choices. It is essential to your continued good karma and peace of mind to never harbor ill feelings or intent toward these people.
The first is your parent. Your mother or father, step or foster. Hating or resenting a parent will only bring pain to your life and to the lives of those around you. You may hate what they did, what they do, how they act or who they are… but you must forgive and love them nonetheless because they are the only people who must also love you unconditionally. They must be there for you, no matter what your decisions are.
The second is your child; for all the reasons stated above.
The last is the only one you choose for yourself. It is the person you create a child with. You may fall out of love with them. They may cheat, break your heart and leave you destroyed. But because of the relationship your beloved child needs to maintain with them, you must look beyond yourself and understand that nothing good can come of your resentment for them. Forgiveness and acceptance is the only thing that can finally set you free. You will be able to be a better parent to your child and a better friend to those you truly value. Most important, you will never have to feel so hurt because of that person again. No one should think it's easy to do… but that is all the more reason to look carefully at the person you decide to have children with. That is a person that you must always love and respect for the sake of your child. A child must face united parents in order to grow up well-adjusted, emotionally healthy and able to parent a child him/herself. Parents need not be in love with each other, but they must recognize and share a united love for their child that transcends all things.
All others who cause you pain can be eliminated from your life completely. People who hurt and use you are not valuable in your world. Finding forgiveness for them is difficult and they don't deserve it anyway so letting them go and moving forward is the only way.
Love and forgive your three people (or more if you have them). Remember to choose number three wisely...
Have a great week.