Joey Feek was recently visited by her best friend Julie, who Joey's husband Rory calls "an angel from heaven" that God sent to their family. Joey treasured her time with her during the visit to the point that it broke her heart to see Julie leave after they spent the precious time together.

Julie stayed for a week with Joey but for the country singer, it was not enough.

"This morning as I sat beside my wife and Julie started packing her things," Rory wrote on his blog This Life I Live. "Joey's tears began to fall," he continued.

Rory said that his wife and singing partner who is terminally ill was "inconsolable" as she imagined her best friend leave for Oregon. This is because Joey had this lingering fear.

"I don't think I will ever see her again," Rory writes as she recalled his wife's words.

Julie decided to ditch her flight and stayed behind for her best friend. When Joey got sick, Julie made it her responsibility to look after the family. She does the cleaning, cooking and baby Indiana's diaper-changing. Joey also shaved her hair first in support of her best friend during her cancer battle.

Julie met Rory and Joey in one of their concerts seven to eight years ago. It did not take long for the three to be really close friends. Julie, of course, continued to support the couple.

She attended every Farmhouse Concert Joey and Rory played. She also helped them by mailing out newsletters and Christmas cards for them. But Rory is most thankful about Julie's existence because she "loves us deeply."

While Julie is the bluegrass duo's biggest fans, Rory emphasized on his blog that he and Joey are actually "Julie's biggest fans."

Just recently, Rory emphasized that their latest album "Hymns that Are Important to Us," which releases Feb. 12, will also be their last as Rory does not plan on singing without his wife.

Joey was diagnosed with stage 4 cancer in May 2014 and underwent treatments October of that year before she was allowed for hospice care in her home in Indianapolis.