<P> When the show premieres, Jackie is dating Michael Kelso, a good - looking, brainless goofball . She decides to finally lose her virginity to him when he is released from jail after being mistakenly arrested for driving a stolen car . Jackie gets on Kelso's friends' nerves on a daily basis and Kelso repeatedly says that he is going to break up with her . However, in the first season it is Jackie who ends the relationship--twice . First, after Kelso is caught kissing Pam Macy (they get back together in the very same episode) and again after a pregnancy scare . However, admitting that they miss each other, they get back together at the Junior Prom . </P> <P> In season 2, Kelso is seduced by Eric's promiscuous and manipulative sister, Laurie, who later on begins a physical affair with him . Later in the season, Jackie eventually discovers his repeated infidelities and breaks up with him without realizing that Kelso has told Laurie that he is done with her since he only loves Jackie . After this breakup she is openly hostile to Kelso and many things clearly remain unfinished between them . She often insults him in front of his friends to get his attention and just for the sake of bringing him up . By season 3, she does eventually warm up to him . Following Kelso's breakup with Laurie, Kelso apologizes to Jackie for cheating on her because now he knows how it feels to be cheated on as Laurie cheated on him, except he states that what happened to him and Jackie was different because they were actually really in love . After this, Jackie begins to notice that Kelso has matured somehow, so Jackie devises a series of "tests" for Kelso to see if they should reconcile . He passes her tests and they get back together . Kelso remains loyal to Jackie after that and stays with her throughout season four, and they enjoy a happier, more loving relationship . However, towards the end of season 4, Jackie's father tells her that if she stays with Kelso, he will cut her off financially . She ends up choosing Kelso, and gets a job . Later, Kelso begins to spend less time with Jackie as a result of his joining a modeling agency and she is caught kissing her boss by Eric . This event spurs a period of discovery for Jackie and Kelso . After reading Cosmopolitan, Kelso realizes that the reason he cheated on Jackie with Laurie was because Jackie has always bossed him around and made him feel bad about himself . Following this revelation, he breaks up with her (true to form, the breakup doesn't stick and they reunite one episode later). </P> <P> In the season four finale, Jackie and Kelso both agree that they don't want to stay broken up . So, Jackie has Kelso choose to kiss any girl at The Hub to make things even between them and they can move on and be together again . Kelso surprises Jackie when he pretends to look around the room, but ends up choosing to kiss her . Jackie decides that it's time for Kelso to really choose her . Without warning, she brings up marriage to Kelso and decides that they're getting married . Kelso, feeling overwhelmed, flees to California . When he returns in the beginning of season five, he (along with the others) is horrified to learn that she has begun dating Hyde . Jackie continues to date Hyde for most of the season, but when Kelso introduces Annette to the gang, Jackie finds herself clearly jealous and tells Donna that Michael is still supposed to pine over her . Later in the episode, she claims to not be jealous anymore, but the moment she sees Annette kissing Kelso, she screams, "Get off my boyfriend!" For the rest of the season, Kelso is clearly not over Jackie and doesn't realize that he's indirectly trying to win her back . Towards the end of season five, as Jackie comforts Kelso, he states that no one understands him like she does . In the finale, Kelso and Hyde make Jackie choose between the two of them and she chooses herself . By the beginning of season six, Kelso claims that he is happy and genuinely enjoying their new friendship . He spends the rest of the season trying to move on with his life, joins the police academy and impregnates a girl named Brooke and spends the rest of season 6 and 7 taking care of the baby . </P> <P> Towards the end season seven, however, Kelso drives Jackie to Chicago after her break - up with Hyde, and Jackie asks him to spend some time with her before he leaves . He is later seen entering Jackie's hotel room in only a towel, implying that he and Jackie were about to sleep together, but runs off nude into the night when he sees that Hyde has come to the hotel to get Jackie back . In the beginning of season eight, with Hyde married to a stripper, Jackie figures out her own life . Kelso considers marrying Jackie and states that the happiest time of his life was with Jackie and claims he still loves her . When Fez tells Jackie what Kelso intends, she considers the proposal and decides that if he asks, she will accept . However, he gets offered a job out of town and realizes he can move on with his life, but Fez reveals to him that he has already told Jackie of the proposal . Kelso grows angry, and states that he loves Jackie and that he knows in the future, they will be together, but now is not the right time, but since Fez has implied that Kelso will lose all of his chances with Jackie if he doesn't propose now, Kelso ends up proposing at Red and Kitty's anniversary party, though, she turns him down giving practically the same reasons as Kelso, which is that she loves him, but he has a lot of maturing to do and she has her own life to figure out so now is not the right time for them yet . They both feel an unexpected relief, and end on good terms . </P>

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