Begin to be now what you will be hereafter. (William James)
Do you want to have a happy marriage in ten years from now? If you want that to happen, then you have to be the spouse needed today. If you want your partner to be happy with you, treat her well today.
Your spouse might bear with you today, but tomorrow she might be fed up. SO, instead of waiting for the ticking bomb to explode, start to think of your spouse like a flower that needs continuous nourishing in order to flourish and grow and turn prettier and prettier.
So yes, this isn't just about marriage and living with someone. This is true for all areas of your life. If you want to be something tomorrow, you have to make the necessary changes in order to reach your goal today.
So, why don't you get up, think about where you want to be in ten years, and work for that to happen and succeed today. Isn't that just a brilliant idea? I like the thought of it myself!