<P> In season two, Katherine tells Damon that she never loved him and that it was always Stefan . Elena says something similar later, leaving Damon heartbroken . As an expression of his anger, pain, and hopelessness, he snaps Jeremy Gilbert's neck, not realizing he is wearing a ring which reverses damage done by supernatural creatures or forces . Jeremy survives because of the ring, but Damon's action incurs Elena's wrath and pain . When Bonnie also discovers it was his blood that enabled Caroline Forbes to become a vampire, the two declare their hatred for him, leaving angrier than ever . After saving Elena with Stefan in episode 8 of season 2, Damon shows up in Elena's room with the vervain necklace that was ripped from her neck earlier in the episode . Before he gives it back, he tells Elena that he is in love with her, and because he is in love with her, he cannot be selfish with her . He also states that he doesn't deserve her, but that his brother does . He kisses her forehead and says he wishes she could remember this, but she can't . As the camera shows a close up of Damon's eye as he is compelling Elena to forget, a tear slips . Elena blinks and her vervain necklace is back around her neck, Damon is gone and her window is open with the curtains blowing . She had no recollection as to how the necklace was returned to her . In one episode, Damon joins Rose to find out why the originals are after Elena; after some time and clever banter, the two have sex, stating that they could rid themselves of emotion . However, when Rose, Damon's old friend who turned Katerina, suffers from a werewolf bite, he gives her the memory of her life prior to becoming a vampire, and helps her remember how good it felt to be able to wall and feel the sunlight, without it burning her . During this meaningful moment, Damon mercifully kills her, leaving him to mourn the death of his one of very few friends . Elena and Damon then begin to mend fences, and Elena gives him an affectionate hug to help comfort him after Rose's death . Damon begins showing another side of himself in small acts that help build what once was an impossible friendship between Elena and himself, after she clearly stated that he has lost her forever . After he spares Caroline's mother, Elena says how that was the person she was once friends with . And it's hard for Damon to accept that he has to change to have her in his life, which he explains to Andy Star, his compelled girlfriend a few more episodes in . Damon is bitten by Tyler the werewolf at the end of the season . Elena takes care of him, and right before he is cured by the blood of Klaus, the original hybrid, she gives him a "goodbye" kiss, because she was sure he was going to die . She even forgives him, telling him that she cares for him through grief - stricken tears . </P> <P> In the third season, Damon helps Elena in bringing his brother, Stefan, back to Mystic Falls after Stefan becomes Klaus' henchman . The arrangement transpired after a bargain for his blood that would cure Damon of the werewolf bite he had received from Tyler . At first, he is reluctant to involve Elena in the rescue attempts, employing Alaric Saltzman, Elena's guardian, instead as Klaus does not know that Elena is alive after the sacrifice which frees Klaus' hybrid side . However, Elena involves herself, desperate to find Stefan . Damon, though hesitant at first, is unable to refuse her because of his love for her . He also points out to her that she once turned back from finding Stefan since she knew Damon would be in danger, clearly showing that she also has feelings for him . He tells her that "when (he) drag (s) (his) brother from the edge to deliver him back to (her), (he) wants her to remember the things (she) felt while he was gone ." When Stefan finally returns to Mystic Falls, his attitude is different from that of the first and second seasons . This causes a rift between Elena and Stefan whereas the relationship between Damon and Elena becomes closer and more intimate . A still loyal Elena, however, refuses to admit her feelings for Damon . In' Dangerous Liaisons', Elena, frustrated with her feelings for him, tells Damon that his love for her may be a problem, and that this could be causing all their troubles . This incenses Damon, causing him to revert to the uncaring and reckless Damon seen in the previous seasons . The rocky relationship between the two continues until the sexual tension hits the fan and in a moment of heated passion, Elena--for the first time in the three seasons--kisses Damon of her own accord . This kiss finally causes Elena to admit that she loves both brothers and realize that she must ultimately make her choice as her own ancestress, Katherine Pierce, who turned the brothers, once did . In assessment of her feelings for Damon, she states this: "Damon just sort of snuck up on me . He got under my skin and no matter what I do, I can't shake him ." In the season finale, a trip designed to get her to safety forces Elena to make her choice: to go to Damon and possibly see him one last time; or to go to Stefan and her friends and see them one last time . She chooses the latter when she calls Damon to tell him her decision . Damon, who is trying to stop Alaric, accepts what she says and she tells him that maybe if she had met Damon before she had met Stefan, her choice may have been different . This statement causes Damon to remember the first night he did meet Elena which was, in fact, the night her parents died - before she had met Stefan . Not wanting anyone to know he was in town and after giving her some advice about life and love, Damon compels her to forget . He remembers this as he fights Alaric and seems accepting of his death when Alaric, whose life line is tied to Elena's, suddenly collapses in his arms . Damon is grief - stricken, knowing that this means that Elena has also died and yells, "No! You are not dead!" A heartbroken Damon then goes to the hospital demanding to see Elena when the doctor, Meredith Fell, tells him that she gave Elena vampire blood . The last shot of the season finale episode shows Elena in transition . </P> <P> Damon starts season 4 at Elena's bedside after finding out about her dying with vampire blood in her system, causing her to start the transition to Vampire . Damon decides to firstly try to kill Rebekah with a White Oak Stake, yet she overpowers him . Rebekah is shot at through the Window and Damon escapes . </P> <P> Later in part of a plan with the Sheriff and Meredith Fell, Damon uses Matt as bait to draw out the deputies and Pastor Young . After dispatching the deputies, Damon decides to take out some aggression on Matt and is about to snap his neck when stopped by the new vampire Elena . After Elena and Stefan go hunting on animals the next morning and Elena has her first feed on a deer she pukes the blood out . Meanwhile, it seems a new vampire hunter is in town . Elena goes to Damon for help, he pulls her with him to the bathroom and makes her drink his blood because he says "You need warm blood from the vein, so maybe this'll do the trick ." He says it's personal and Elena wonders why but no answer was given . She drinks his blood but pukes hours later . When Stefan finds out Damon has feed Elena his blood he's very angry and hits Damon who just got in a fight with the vampire hunter . </P>

When do elena and damon become friends again