In new orleans the witch told damon that a person can be only sired to u if she/he has sum feelings for u before becoming vampire, that means elena is sired to damon bcoz she luves him before becuming a vampire n thats y caroline n other whom damon turns dnt sire to him.
That means yes elena luv him but she changed bcoz of sired thing its not all bcoz of sired thing, its older😆
Correct me if m wrng😳