Wilkinson posted several videos Monday after rumors swirled in recent months of ongoing issues in their relationship that signaled a split was imminent.
She also broke down in tears on video recounting her time with Hank, saying she'll always love him and, "I did everything I could."
She and Hank have 2 kids together -- 8-year-old Hank IV, and 3-year-old Alijah. The couple got hitched in 2009 at the Playboy Mansion -- with Hugh Hefner and her other 'Girls Next Door' castmates in attendance. When we saw Kendra last week in Calabasas, she tried to keep a positive outlook ... but she was, pretty obviously, stressed.