Paul Marciano is making a major cut from his personal life ... because the co-founder of the fashion brand Guess has filed for legal separation from his wife. According to the docs, obtained by TMZ, Paul filed for legal separation on Monday from his wife, Mareva Georges Marciano , after nearly a decade together. He cites the usual "irreconcilable differences" as the reason for the split. The docs show the two share one child, 13-year-old Gia ... and Paul is asking for joint legal and physical