We know that supposedly destiny has been trying to get all the dopplegangers together. However what if that's not what is happening I mean Kat didn't fall for a Silas Doppleganger when she was human and if she did I would think she would have mentioned it.
I think that maybe Damon is meant to be with Elena. I mean what if someone up stairs or whatever is trying to see if destiny can be defied so they introduced Damon into the mix. What I am saying is what if Damon's not the thing in the way of Elena's one true love but it's really Stefan?
I mean a destined love with the dopplegangers is forced, repetitive and not natural if anything it is an echo of Silas and Amara making it not real because it's a echo but if Delena is a cosmic annomally that would mean that its the real thing and explains why there is so much more passion because it's real.
I mean mostly Stelena is a perfect romance like to perfect that's because it's a echo it's been played out over and over again.
That's why Elena and Damon affect each other like what Rose said to Jeremy because it's real and not an echo. Damon maybe nature's way of disrupting a pointless and chaotic meaningless cycle for example Damon was created to set off a chain reaction of events that would cause chaos and finally restore the balance to the universe the end result being Silas and Amara being reunited as they are meant to be and for The Other Side a barrier preventing spirits from finding peace to be destroyed and ultimately restoring the balance of life and death to it's natural state.