Welcome to Plathville stars Ethan and Olivia Plath have finalized their divorce nearly three years after calling it quits. According to documents obtained by Us Weekly and filed in Minnesota's First District Court in February, Ethan, 27, and his ex-wife, Olivia, 27, both signed off on a financial agreement to dissolve their marriage. As part of their divorce decree, the former couple agreed to waive the possibility of either one ever seeking spousal support.