Story highlights Husband of Mary Kay Letourneau Fualaau files for separation

Former teacher went to jail on charges stemming from sexual relationship with 13-year-old student

(CNN) The same month he would have celebrated his 12-year wedding anniversary, Vili Fualaau -- one half of the couple whose love story captivated national audiences -- filed for legal separation from his wife and former sixth-grade teacher, according to court documents obtained by CNN.

Mary Kay Fualaau, formerly Letourneau, was a married 34-year-old teacher and mother of four in Seattle in 1996 when she began an affair with Fualaau, her 13-year-old student.

Letourneau gave birth to her young lover's child before she went on to serve more than seven years in prison on charges related to their sexual relationship.

Soon after she was released from prison in 2005, the pair got married in Woodinville, Washington.

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