All of Helga's attempts to get Lila to drop out fail, but Lila reveals that she knows why Helga wants the part of Juliet so badly---and admits that she's always sort of suspected that Helga had a crush on Arnold.
Lila says that she'll gladly give up the role if Helga would just admit that she has feelings for him, calling her plot to kiss him "ever so sweet." Helga then admits to Lila that she loves Arnold.
However, despite her typical behavior, Helga and her classmates do often interact as a friend group and have cooperated in the past, often during situations where they're all facing a common problem (examples: "New Teacher", "Ghost Bride"). In contrast to Helga's feelings towards Arnold, she is almost always followed by Brainy in each episode, where he is right behind her, breathing very hard (usually after one of Helga's emotional monologues).
Some more specific examples of Helga interacting with other kids are: Harold in "Buses, Bikes, and Subways" and Gerald in Hey Arnold! Though it's apparent that he is in love with Helga, she never returns the feelings as mutual; on scant occasions, she has kissed him due to something going right for her.
The Jungle Movie)Arnold's love interest/girlfriend and former arch-rival The name Helga is of Eastern European origin, which means "holy." In the series, Helga's sister is named Olga, which also means "holy." The names Olga and Helga are variants (respectively, Russian and German) of the same name.
Helga's second name is Geraldine, and is a tribute to former Nickelodeon executive Geraldine Laybourne.
Helga is very jealous/resentful of Lila, who Arnold has a crush on from "Arnold & Lila" to "Timberly Loves Arnold".
As a result, most of the other kids generally tolerate or are indifferent to her.However, Helga also has a much softer side, which becomes apparent when she is alone and involved in her school work.She is very emotional, poetic, sometimes caring, and as such, able to comprehend a spectrum of emotions such as love and hate.Lila's one of the few characters to know about Helga's crush on Arnold.In "School Play", Lila's the last girl Helga has to get to drop out of the play so she can be Juliet and have an excuse to kiss Arnold, who's playing Romeo, in the final scene.