"The Real Housewives of Miami" alum Joanna Krupa is officially headed for divorce. The 38-year-old model recently filed to end her four-year marriage to Romain Zago after splitting from the club owner in May, according to TMZ. Krupa said in legal documents that her marriage is "irretrievably broken," although sources said the split was "extremely amicable." Krupa and Zago divided their assets in a marital settlement agreement dated Monday. "Joanna and Romain successfully and amicably resolved all matters; both remain friends and desire the best for each other," a lawyer for the pair said in a statement to E! News. People reported May 9 that Krupa and Zago had amicably separated. The reality star shared a topless photo and a cryptic message Tuesday on Instagram following word of her divorce. "Falling in love with yourself first don't make you vain or selfish - it makes YOU. #JoannaKrupa #BlackDoorManor," she captioned the picture. Krupa is known for competing on "Dancing with the Stars" Season 9, and starring in Seasons 2 and 3 of "The Real Housewives of Miami." She is a host and judge on the reality competition "Poland's Next Top Model."