Thank you for writing! After many years of dealing with parents who have hurt us, it is no easy task to take down the important walls we have built to protect us from their insults and behavior.
The fact that your parents may be following the AA 12-Step process in which Step 9 requires making direct amends to people they have harmed, except when to do so would injure someone, probably means they are not trying to "push" their apologies on you. If they are, then they need to learn more about Step 9. As for the fact that as we get closer to death we often try to fix things with folks we have hurt, this is only natural. Impending death affects all of us this way, and it often allows the meaner, more self-centered folks among us to tap into their better selves. They may try to do the right thing, maybe for the first time in their lives. It can be a change that is difficult to believe in.
Here is the most important thing to consider about the process of dealing with people who have hurt us in the past, but who are not hurting us now: forgiveness can be very good for us. In the last 20 years, scientists have discovered how much forgiveness can lead to emotional and physical healing and wholeness. In your situation, it may allow you to significantly decrease the emotional background noise in your life. Resentment eats up a lot of energy, even when it is well locked-up.
What is interpersonal forgiveness and why is it so powerful? Lewis Smedes, one of the early thinkers about forgiveness, defines three steps to the process of forgiveness: (1) surrendering the right to get even with the person who wronged us, (2) reinterpreting the person who wronged us in a larger format (letting go of the caricature we have created of them), and (3) allowing the emergence of a desire for the welfare of the person who wronged us. In forgiving, the forgiver gets to benefit from reducing their own negative affect (resentment), negative cognition (harsh judgments), and negative behavior (revenge-seeking).
Although forgiveness can be seen as an unconditional gift given to someone who may not deserve it, it is also a huge gift to our own mental wellness. As we let go and forgive a person who has hurt us, we experience relief and healing. It is impossible to describe all the important details of the forgiveness process in this short column. I invite you to visit www.AllAboutForgiveness.com for more information. I hope this helps. -- Best wishes, Dr. Debug.