Nick Cannon thought Bre Tiesi was “nuts” for joining “Special Forces: World’s Toughest Test.” The “Selling Sunset” star spoke exclusively to Page Six’s “Virtual Reali-Tea,” and revealed how Cannon — with whom she shares four-year-old son Legendary — reacted to her joining the Fox show’s fifth season. “He was like, ‘Good luck,'” Tiesi, 35, told us. “He definitely was like, ‘Girl, why? Why do you want to do this?’” In “Special Forces,” a group of celebrity recruits are put through the rigorous Special Forces selection process, led by real-life former military operatives. Tiesi said it was actually her ex-husband, former NFL quarterback…
