Article continues below advertisementKelly Clarkson's ex-husband, Brandon Blackstock, cherished his last months in the calm of Montana, where he felt truly "at home," according to a report.Blackstock, who once managed the singer's career, acquired a $1.8 million residence in Butte, Mont., just a month after their 2022 divorce was finalized. The pair began dating in 2012, tying the knot in October 2013."Brandon lived a pretty quiet life in Montana. That was how he liked it," a source told Us Weekly. "Even though he worked in entertainment in the past, that was not his personality.