Good Morning America host Robin Roberts on Sunday came out lesbian.

The 53-year-old Roberts thanked girlfriend Amber Laign for standing by her side as she faced a diagnosis of myelodysplastic syndromes (MDS), a severe blood-related condition. The pair have been rumored to be an item for over a decade.

“I am grateful for my entire family, my long time girlfriend, Amber, and friends as we prepare to celebrate a glorious new year together,” Roberts wrote in a Facebook post.

Roberts' entire statement follows.

“Flashback 12/29/12….Hard to believe this was 1 year ago today..when I reached a critical milestone of 100 days post transplant…and KJ was finally allowed to come back home.”

“Reading this comforts me and I hope the same for you: 'If you are depressed, you are living in the past. If you are anxious, you are living in the future. If you are at peace, you are living in the present.'”

“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.”

“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.”

“Wishing you a Healthy and Happy New Year.”

ABC News responded with a brief statement: “We love Robin and Amber, who we have all known for a long time. We were so touched by her Facebook message today and so thankful for all the loving support she has in her life.”

President Barack Obama turned to Roberts last year to announce for the first time his support for marriage equality.