Lisa Rinna and Colton Underwood's rising tension on season 4 of The Traitors is hard to miss - and there doesn't appear to be any love lost between them off camera either. "Let's talk about you being a stalker...." Rinna, 62, wrote via Threads on Friday, January 23, slamming Underwood, 33, for his past alleged harassment of ex-girlfriend Cassie Randolph. Rinna's jab came after a fan posted a meme of her from her Real Housewives of Beverly Hills days, warning The Bachelor alum that he shouldn't make an enemy out of her on The Traitors.