The couple, who were friends for 12 years before embarking on a lockdown romance in 2020, are both said to be devastated by the end of their relationship.
Lord Coe, 65, has found happiness with Los Angeles PR boss Sarah Robarts, 52, a British-born mother-of-two who previously dated a star of US reality show The Bachelor.
How Sir Malcolm Campbell s Bluebird yacht has been restored and reinvigorated for its 90th anniversary countrylife.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from countrylife.co.uk Daily Mail and Mail on Sunday newspapers.