It is hard to believe that such an important event in your life—your wedding—could be ignored, avoided, or not significant enough for your twin to attend. But missing your twin’s wedding happens more than you would imagine. Whether the wedding was not well planned or impossible to attend because of time, location, or emotional turmoil, many brides and grooms commit to a very serious relationship without their twin’s presence. I wonder, “Is the non-married twin jealous of their twin’s new spouse?”

In my own experiences consulting with twins or going to their weddings, a truly good spirit of hopefulness is the primary sensibility. The most typical emotion of a twin wedding is closeness and harmony among everyone invited: the twins themselves and all the families and friends. But as the use of fertility treatments has led to more twins being born, more data has come to light about the challenges of being a twin and twin estrangement (a deep schism between the pair).

My twin sister could not attend my wedding because she was in Sweden with her new husband, who was studying sculpture. Practicality came first. We had just graduated from college, and the cost of the plane fare and hotels was way too much money to spend. And the thought that we could not be together did not concern us. We were very against creating a twin spectacle, so we were not disappointed that we would not be........

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