Roberts told about the relationship in a Facebook post while reflecting on the past year. It was an entire year ago on Dec. 29, 2012, when the news anchor celebrated 100 days after having a bone marrow transplant during her battle with myelodysplastic syndrome.
"At this moment I am at peace and filled with joy and gratitude. I am grateful to God, my doctors and nurses for my restored good health. I am grateful for my sister, Sally-Ann, for being my donor and giving me the gift of life. I am grateful for my entire family, my long time girlfriend, Amber, and friends as we prepare to celebrate a glorious new year together."
The long time girlfriend Roberts refers to is Amber Laign. She and Roberts met through mutual friends and have been together for 10 years. Laign is a licensed massage therapist from the San Francisco Bay Area.
Roberts also wrote:
"I am grateful for the many prayers and well wishes for my recovery. I return every one of them to you 100 fold. On this last Sunday of 2013 I encourage you to reflect on what you are grateful for too."
According to CNN's Brian Stelter this is the first time Roberts, 53, has spoken publicly about her sexual orientation.
ABC News issued the following statement regarding Roberts' Facebook post:
"We love Robin and Amber, who we have all known for a long time. We were so touched by Robin’s Facebook message today and so thankful for all the loving support she has in her life."
Many people suspected this about Roberts, but they didn't know for sure. This comes as a shock to some unsuspecting folks.