Teach them by example.
Have arguments in front of them, but then come together to solve and resolve your issues as a couple.
Admit when times are though, but let them know you are all a family and you will get through it.
Explain what marriage means to you.. Have your husband explain what it means to him..
I will tell you, my parents are divorced, but they were products of their own parents. The grandparents fought. They had the traditional roles and did not give each other credit.
One example, My grandfather, never thanked my grandmother for working to help the family. Instead he complained when dinner was not on the table and the clothes had not been laundered..
My grandparents stayed together, but did not speak to each other for over 20 years.. Yes, they lived in the same house. It was ridiculous.
My parents got a divorced and it was the best thing that could have happened.. They had been encouraged to marry, because they were getting old. My father did the same thing to my mom.. My father was always criticizing my mom. My mom was afraid of my father and began to resent him They needed to be divorced. My father did not change for another 15 years after their divorce.
What I learned from each of these marriages, is how I did not want to end up.
I found a man, I love and want him to succeed at whatever he does. He has the same feelings for me. We cheer each other on..
We have gone through some rough patches, but we worked at staying together and finding a way to agree to be caring and kind to each other. We bicker, we get frustrated, but we really work on our marriage..
You are the couple they are going to learn the most from.. In a way it falls on you, to show them what a happy marriage is..