Resentful Damon - Vampire Diaries

Mystic Falls, 1864. Katherine Pierce, vampire discovered by the authorities in order to be burned alive. Stefan and Damon Salvatore, sons of an important family and both in love with the girl, tried everything to save her, each believing to be the one for her. They failed and both died trying, ignoring that the young lady decided otherwise. Here they were, turned into vampires, thanks to Katherine's blood. They will then quickly learned that the woman never died in the flames but ran away, but also that she never wanted to keep in touch with them. Both brothers will then try to keep going on with their life, trying to recover. But one of them will never let go.

How will he react when they both find out that Elena, Katherine's doppelganger? What will happen to them? To him? To her?