The last item is basically the "RPW summary", imo:
One of you has to go first. Apologize first. Be vulnerable first. Yield first. Forgive first. Why not let that person be you?
Thinking you have a 50-50 chance of ending up divorced makes it seem like a coin toss. It's not. There are some behaviors that nearly guarantee failure. We all know what they are. It's a good idea to not do them.
Marriage is a "learn on the job" proposition. None of us comes into it with all the skills we need for success. When the going gets rough it's most often a sign that we need some new skills -- not a sign that we need a new spouse.
When you think to yourself, I really shouldn't say this, you're probably right.