Damon almost killed Bonnie and Enzo through Syril's command. Also it will never be forgotten that it was Damon who bit Tyler's neck which left fans to question if he's truly dead or alive.
According to EW, that unforgettable title "You Decided That I Was Worth Saving" wherein Damon thought he was kissing Elena on the first season finale of "The Vampire Diaries." Instead, he was really kissing Katherine, but for Damon he was finally saying thank you to Elena for she decided that Stephan's suicidal brother was worth saving.
At Bustle, it was written that Sybil is doing her best to convince Enzo to give up his humanity and join them but she can't because Enzo is still fighting against her. Sybil finally found a solution on how to win over Enzo as she bet his humanity for Bonnie's life. And of course it was just a trick that she commanded Damon to kill Bonnie after Enzo initiated the switch.
#bonenzo in season 7 is just breaking my heart lets go back to the glorious season 6 days #TheVampireDiaries pic.twitter.com/oaw2jG3wpC
— MariamMaher (@MariamMHassan13) October 24, 2016
While Sybil is still playing the mind of Damon by totally deleting Elena in Damon's life through changing his memories about what happened at Wickery Bridge. Damon remembered that his brother was not there to save Elena during the accident. With that, Damon thought Elena is dead. Sybil confirmed to Damon that he never met Elena and he never will.
Stefan: Will You? Caroline: Yes! #SterolineJuneWedding #TVD pic.twitter.com/cW3eGNo1rP — The Vampire Diaries (@TVD_Season_7) October 29, 2016
During Caroline's wedding, Damon came to kidnap her, but Caroline and her future maid of honor already knows a trick to knock him down. Immediately Sybil and Enzo came to rescue him and there she discovered that Damon cared for her.