‘Vampire Diaries’ Season 5, Episode 9 Spoilers: Elena Turns To Aaron After Damon Tells Her A ‘Terrible’ Secret From His Past

"Vampire Diaries" season 5, episode 9 synopsis was just released, and it reveals some new spoilers for Elena and Damon's relationship in "Vampire Diaries" season 5, episode 9. What is the deep, dark secret from Damon's past that sends Elena running to Aaron for comfort?

The synopsis for "Vampire Diaries" season 5, episode 9 (which has the ominous title of "The Cell"), reads: "FLASHBACKS TO A DARK TIME IN DAMON'S LIFE - Stefan (Paul Wesley) continues to offer Katherine (Nina Dobrev) his support while trying to mask his own pain, until Caroline (Candice Accola) shows up with an unusual form of therapy. After trying to make amends with Caroline, Elena (Nina Dobrev) grows so concerned about Damon (Ian Somerhalder) that she turns to Aaron (guest star Shaun Sipos) for help. Later, when Damon tells Elena about a terrible ordeal in his past that he has kept secret for decades, she shares the disturbing information she just learned about her own family. Finally, Aaron decides on a desperate course of action after a conversation with Dr. Wes (guest star Rick Cosnett)."

Damon's secret must be something truly "terrible" if it sends Elena running to Aaron for help. And what does it have to do with her own family?

One thing's almost certain: we can be prepared for some much-loved flashbacks into Damon's past.

Last week, Ian Somerhalder - who plays Damon Salvatore on "The Vampire Diaries" - told TV Line that the relationships on the CW show are bound to face obstacles in season 5.

"Relationships are hard in life. Relationships are really hard in Mystic Falls," Ian Somerhalder said. "If you don't have conflict, you have no drama; and if you have no drama, you have no TV show. So relationships don't last that long in Mystic Falls..."

"Vampire Diaries" airs Thursday nights at 8 p.m. ET on the CW network.