Actress Tisha Campbell and Duane Martin are splitting after 21 years of marriage. Campbell who is 49, shared on social media Thursday with followers that she had filed for divorce from Martin, tweeting: “After 27 years of being together and 2 amazing children, it pains me to announce that I’ve filed for divorce,” It's an emotional time and I graciously ask for privacy for me, our children and the rest of our family."