Life Narcissists often try to win back their exes with ‘hoovering;’ experts say it’s emotional blackmail. April 22, 2022 Jenna Ryu, USA TODAY Comments Off on Narcissists often try to win back their exes with ‘hoovering;’ experts say it’s emotional blackmail. Often times, toxic exes make an effort to come back into our lives. Is it because they truly changed, or are they "hoovering" you?