Sire bond? Excuse me while I laugh.
In 4x02 Damon told Elena to pick a victim to feed. But she refused to do it.
Remember when he let Elena drank from his vain? What happened? She couldn’t keep that down either, right.
In 4x04 Damon told her to feed on this girl at the college? But Elena COULDN’T DO IT.
Not to mention that Damon also told Elena to reconsider her feelings for Stephen.