Question: How old are Nick and Elizabeth? Hallie says that Nick's fiancee, Meredith, is young enough to be her sister. This would imply that Nick is at least sixteen years past Meredith's age, twenty-six. That would make him forty-two, so he was thirty or thirty-one at the time the girls were born. However, Meredith left Nick because they were "so young" and didn't get along. The early thirties years are not usually considered young ages for getting married and having children.