The singer claims she was duped into participating in the "sensational" documentary, dubbed Biggie and Faith Evans, explaining, and now regrets her involvement.
"I feel upset that I'm attached to it," Faith tells the New York Post's gossip column Page Six. "I was told that it would be a positive piece with a little more of my personal background. It wasn't pitched to me as a story rehashing the sensationalised events that took place.
"I am beyond that and have no need to open old wounds, damage repaired relationships and, above all, soil the legacy of Christopher Wallace, a k a The Notorious B.I.G."
A promo for the new show promises to, "revisit the most intimate moments of their relationship... from their whirlwind engagement, to Biggie's ongoing affairs with Lil' Kim and Charli Baltimore, to the East Coast-West Coast rivalry that led to Tupac Shakur and Big's deaths."
But Evans maintains the programme was "supposed to be a love story", lamenting: "The Tupac stuff, the different women - how many times are people going to talk about that?".
She went on to insist the rapper's mother, Voletta Wallace, is also "p**sed" over the project, and claims the expose is "taking steps backward", regarding the Rock & Roll Hall of Fame nominee's legacy.
Evans is refusing to promote the TV special, stating: "It's about my morals. I would never do business I'm not proud of at this point in my career. I'm not happy."
The Notorious B.I.G. was murdered by an unknown assailant in a drive-by shooting in Los Angeles, California on 9 March 1997.