Why did tinker bell despise Jane?

Tinker Bell despised Jane because she felt threatened by her presence and feared that Jane would replace Wendy, the girl who had previously been Peter Pan's friend and companion. Jane's skepticism towards the magic of Neverland and her maturity contrasted sharply with Tinker Bell's playful, whimsical nature. Additionally, Tinker Bell's jealousy was rooted in her desire to protect Peter and maintain the childhood innocence that Jane seemed to challenge. Ultimately, their conflict stemmed from Tinker Bell's deep-seated insecurities and need for validation in a changing world.