with his Ukrainian girlfriend, Lana, both astonished and confused his fellow season 4 castmates during part two of the tell-all, which aired Monday night on TLC.This season followed 60-year-old David's extreme efforts to meet his online girlfriend, 27-year-old Lana, whom he's been communicating with for seven years. David and Lana chat through a website David pays for, which he said has cost him thousands of dollars.