Olivia Newton John was dating Patrick McDermott when he was reported missing in 2005 after allegedly falling off of a boat and drowning. There have been endless theories surrounding his death, for example none of the 22 other passengers heard or saw Patrick when he fell. He also owed his ex-wife $8,000 in child support at the time. McDermott’s EX-wife and Olivia Newton John have both come to terms with his death.