Mark's evolved personality wasn't wrong about the psychological assumptions about Elena. He was correct to assume that she was fighting the demons inside her heart, because clearly, her falling in love with a guy that is twenty years younger than her, and especially at a time after her husband had sacrificed himself for her, is not quite the proudest thing that she can imagine.
The thing is, Mark was just digging on the surface of the truth. His assumption was correct indeed, however, there was a deeper lore to it…
Elena wasn't just fighting her own demons like Mark assumed, but was fighting the demons that Alissa had created inside her heart.
