I wrote in my last post about how your view of the world impacts your relationships. You learn a way of being in your family of origin (the family you grew up in) and you and your partner both came from entirely different families. Even if you think you have a lot in common, it is soon apparent that differences in expectations can cause you a lot of pain and conflict. Today I'd like to talk about three common expectations that can give us trouble in our relationships.

1. The Happiness Expectation

One of the expectations that we often bring to a relationship is that marriage, or another person, will make us happy. I long ago framed an old cover copy of LIFE magazine, in which one half showed the wife lounging in bed being served breakfast on a tray by her adoring spouse. The other half of the cover showed the spouse, also lounging in bed being served breakfast by his adoring spouse! I am sure that I found this particularly enduring because of some of my own unfulfilled expectations. We expect the behavior of our partner to bring us happiness. For example, I fully assumed that my husband would be the one to handle the trash in our family. My father always took care of that chore in my family or origin. I assumed that taking out the trash was equal to an act of love. My husband, however, had a different idea. His mother took care of the trash and he considered it women's work. We battled that difference for many years before finally reaching peace. We still both try to pass off the task to the other, but we don't any longer make the same assumptions as to who owns the problem.

This idea that we our happiness depends on another person's behavior is a troublemaker. Happiness begins as an inside job and expecting your partner to fulfill all your needs will only lead to frustration – and unhappiness! I spent my early married years waiting for my husband to bring me flowers. That is not the way he shows me love and when I realized that, I began to buy myself flowers.

2. The Change Expectation

Another expectation that causes problems is assuming that your partner will change after you are married. If you don't like the package prior to the wedding day, don't assume that you can bring about change. I will admit that change does happen in response to each other in a relationship. Sometimes it’s changes we want; other times it’s changes we didn’t expect. But assuming that you will be the change agent in forming your partner into the perfect man or woman of your dreams is sheer fantasy.

Barbara Streisand said, "Why does a woman work ten years to change a man's habits and then complain that he's not the man she married?" This is not a funny joke. Many people, when asked what they saw initially in their spouse, will produce a list of qualities and behaviors that were once endearing. Often these are the same qualities or behaviors now topping their complaint list! Perhaps your partner was spontaneous and fun loving. In later years, that might translate into "unpredictable" and "irresponsible." Or maybe you were serious and down-to-earth, only to hear now that you are "no fun," and "too boring." Beginning to accept your partner "as-is" is the beginning of a healthy relationship. We are often attracted to a person who is very different from us or our family and then spend a lifetime trying to make that person more like us!

3. The Peace-At-All-Costs Expectation

Many of us came from families where conflict was avoided at all costs. In those families, it is considered taboo to bring up topics that will cause anyone to become even the slightest bit upset. In other families, yelling and arguing are considered the norm and are not upsetting. Isn't it interesting that we seem to gravitate to someone who is the opposite of what we are accustomed to? Often the two types will marry and before long will wonder why there is such a disagreement in how arguments are solved. But the expectation that everything will always be smooth and that disagreements won't need to be worked out is also a poor start to a relationship.

Recognizing that these expectations exist is a good starting place for understanding why it is that two people who started out thinking that their relationship was perfect, find out soon enough that there is work to be done to make the relationship last!

Terry McNichols is a Marriage and Family Therapist who also blogs at Grace and Gravity and Are We There Yet?