Why did Peter Pan banish tinker bell from neverland?

Peter Pan banished Tinker Bell from Neverland because she endangered the life of Wendy Darling by trying to convince Peter that Wendy was a threat to their friendship. Tinker Bell's jealousy and impulsive actions led to her being seen as a danger to the group. As a result, Peter, wanting to protect Wendy, made the difficult decision to temporarily exile Tinker Bell.