This is presumably because, as Pam mentioned later, "everybody likes Jim".A major part of the character Jim Halpert is his relationship with Pam Beesly, which is often the subject of office speculation.While Pete and Tom have been seen on the show a few times, Larissa has not.Although no high school is specifically named by Jim, both Dunmore High School (as evidenced in a deleted scene from "Product Recall" where, during a business visit, he asks a high school student about a former teacher) and West Scranton High School (as evidenced when, during "Email Surveillance", Pam holds up his yearbook displaying their mascot name, Invaders, across the front) are referenced in separate episodes.His character serves as the intelligent, mild-mannered straight man role to Michael, although it is also defined by a rivalrous pranking on fellow salesman Dwight Schrute and a romantic interest in receptionist Pam Beesly, whom he begins dating in the fourth season, marries in the sixth, and has children with in the sixth and eighth.Jim Halpert was born on October 1, 1978, to Gerald and Betsy Halpert.Pam, whose wedding to Roy was planned out and just weeks away, clearly shows her anguish but gently turns him down.Jim tearfully walks away, later kisses her in the office, and the season ends. Though in later seasons, after Ryan Howard's promotion, the relationship between him and Jim seems to be tense, in earlier seasons the two seem to be friendly.
His reason is later stated as "It's just, I kinda put it all on the line. Throughout season 2, Jim dates Katy, who initially appeared in season 1 as the "Purse Girl" in "Hot Girl".
Though Jim loves to play pranks on Dwight, he is shown to have some things in common with his nemesis, such as a knowledge of comic books and an appreciation for the sci-fi/fantasy genre; as demonstrated in "Take Your Daughter To Work Day" when Jim and Dwight correct Michael on details about Superman and Aquaman. Prior to getting engaged to Pam, Jim previously drove a 2008 Saab 9-3, 2006 Saab 9-2x and 2005 Toyota Corolla. He is adamant throughout the series about his job as a salesman at Dunder Mifflin Paper being a temporary one, saying, "Right now, this is just a job. And if this were my career, I'd have to throw myself in front of a train." This outlook is most apparent in the elaborate pranks that he plays on his workmates, primarily Dwight, as well as his sarcastic remarks and facial expressions to the film crew and his provoking comments during often ridiculous employee meetings.
However, he succeeds professionally and is consistently one of the best salesmen.
This is made worse by the fact that Pam was engaged to Roy Anderson, a Dunder Mifflin warehouse worker.
Throughout the first two seasons, incidents such as Pam falling asleep on Jim's shoulder in "Diversity Day" and drunkenly kissing him in "The Dundies" show a possibility of the feelings being mutual; however, Pam never acts on them and she remains engaged to Roy.