5. Be forgiving.
One of the most important and common boundaries in marriage is the importance of being forgiving.
Everyone is human and everyone makes mistakes. Over the course of a marriage, there can be many, many mistakes. And if those mistakes are left to fester, a marriage can be destroyed.
It is important that people learn how to forgive in relationships. This doesn’t mean to forget but to work to understand why your partner did what they did and to learn to accept it and move on. To not let the transgression fester by not dealing with it.