Once a cheater, always a cheater. Kira Arellano has a nifty hack for women who suspect their significant other is cheating on them. After the 19-year-old busted her own fiancé, she took to TikTok recently to share a suggestion that “saved” her: A prenuptial agreement that includes a clause stating if someone in the relationship cheats, the other half is entitled to compensation for emotional damage.