A Bruce Willis insider insists the actor had to quarantine with his ex-wife Demi Moore because he got 'stuck' in a COVID-19 hotspot.The Die Hard actor, 65, still has a good relationship with Demi, and has been staying at Sun Valley, Idaho with her and their three daughters Rumer, 31, Scout, 28, and Tallulah, 26, as his wife Emma Heming remains in Los Angeles with their two kids,Mabel, eight, and Evelyn, five.In an attempt to explain his bizarre decision to remain with his ex, an insider insisted that Bruce's entire family originally planned to join him until there was an outbreak of the virus in the area, reports ET Online.