Twins often marry to another twin and create a very interesting familial situation; however if one married a non-twin, that spouse will most likely have a similarity with the spouse of the other co-twin. When twins get older, they become more susceptible to relationships outside their inner twin zone, romantics relationships. Sophie Cassell acknowledges that because twins share a very intimate relationship they will almost always want to find, “somebody else in their lives to fill the role that their twin filled, essentially ‘completing’ them by comprising the other half of their identity,” otherwise known as twin yearning (Cassell 6). In addition, a study on male twins has shown that, “many of the men ‘reported a mutual problem of establishing
