Making a marriage work should not be taken lightly. A marriage and a relationship is like a plant that needs constant nurturing to see it grow the ways it needs to be, for decades to come. If you don't take your relationship too seriously, in a way that it dramatically effects your partner, then realize that this may be pushing him or her further away from you.
Don't let your marriage fail because you have become so dependent in the idea that all will be fine and that you are walking a troubled free line that nothing will happen. Relationship and marriages do fall apart. This mostly happens when the couple don't even realize this.
Maintaining a marriage or relationship is one of the most beautiful things in this world and it may be one of the hardest for some. Most couples do not have the right tools to effectively maintain or repair their marriage or relationship the way that they need to. This is a sad case but it is true.
You will have your ups and downs in a marriage but know this, if you keep you wits about yourself in all that you do in your relationship, then you will surpass the many other couples that fail miserably in this challenging endeavor. You don't have to fail in your marriage if you know how to maintain it properly.
As you go through life and hold on to that special someone, know this: To keep the one in your life takes sacrifices and the eternal "will" to do so. Don't let the one you love slip away because you failed to see things through to make it work out better.