Lara Spencer broke her social media silence over the weekend when she revealed that she'd been absent for a heartbreaking reason.MORE: Lara Spencer's Connecticut garden resembles a winter wonderlandThe Good Morning America star shared that she was recovering from the loss of her best friend over the week and had finally found the strength to pay her a tribute.She shared an emotional post consisting of pictures of theirs over the years, including at Lara's wedding, among others.WATCH: Lara Spencer makes heartbreaking discovery at family homeLara penned a heart-wrenching caption, writing: "One week ago today we said goodbye to my best friend. It's a terrible loss for everyone who knew her, but she was adamant that we celebrate her 52 years of life."She further detailed their relationship, revealing that this was a friend of hers from her teens and that they'd been through several of life's milestones together.MORE: Lara Spencer inundated with compliments over latest outfit choice"Julianne Shirley fought a mighty battle, giving her 5 kids and husband 7 years more than anyone thought she would.