In the multi-episode season 5 finale "Totally Dunzo", where Mandy has a "near death experience" (breaking her nail), she starts treating the girls nicer, but this is again short-lived when she learns they are spies.
In the multi-episode season 5 finale "Totally Dunzo", when Mandy faints from breaking her nail, her life flashes before her eyes and she realizes she has been a horrible person. She then starts treating the girls nicer, but this is again short-lived when she learns they are spies.