You say that your married life is good; but how do you make your marriage better?
You are happily living with your husband, and you want to keep your man forever.
You would want to be like those couple who have lived together for many number of years, say, 20, 30, 50 years and beyond.
Those are husbands and wives who have lived, loved each other, fought and settled their problems by mutual concessions.
Well, you need to learn a lot from them.
In addition, you need to take up and start to follow a course of action to improve your partnership that is already wonderful and awe-inspiring.
Considering your marriage as your top priority will be a great help to your purpose of making your marriage better.
You should not forget though, that it is normal for a relationship to gradually develop from a simple to a more complex partnership over time.