Twenty years after their relationship sparked international headlines, Mary Kay Letourneau's husband Vili Fualaau filed for legal separation earlier this month, according to a TMZ report published on Tuesday.
The Seattle teacher was married with four children when she began an affair with Fualaau, who was a student in her sixth-grade class at the time.
Letourneau, then 34 years old, was forced to make the relationship public after becoming pregnant by her then 12-year-old student.
The Seattle teacher was arrested in 1997 when her husband found out about the affair. She served a total of seven years in prison after pleading guilty to two counts of second-degree child rape.
Letourneau and Fualaau ultimately married and have two daughters together.