Driven by Envy/Playing With

Basic Trope: An unsympathetic character acts out against a sympathetic character out of jealousy.
 * Straight: Sally is jealous of the naturally-talented Alice, so she tries to make her life a living hell.
 * Exaggerated: Sally repeatedly and openly tries to kill Alice at various intervals.
 * Downplayed: Sally is jealous of Alice and steals her chocolate pudding.
 * Justified: Sally and Alice are competing for the same rewards, so Sally wants to give herself any advantage she can.
 * Inverted: Sally is jealous of Alice, but does everything she can to make Alice's life better.
 * Subverted: It turns out that Sally is actually a huge Jerk With a Heart of Gold - being mean to Alice is just her way of pushing her to succeed even further.
 * Double Subverted: But then it turns out that the Training From Hell angle was just an excuse to get Alice out of the picture for real.
 * Parodied: Sally is The Hero in a To Be a Master type of anime, and the way she progresses up the ranks is by killing off or otherwise annoying the hell out of her opponents.
 * Deconstructed: Because Sally is so focused on her jealousy of Alice, she fails to develop her own talents enough to where she can achieve her own goals. As a result, she becomes a bitter failure while Alice goes on to great success.
 * Reconstructed: In time, however, she learns to bury the hatchet with Alice and the two become friends and collaborators.
 * Zig Zagged: As "Double Subverted"...except it turns out that Sally is so devoted to her Training From Hell angle that she makes it seem that she genuinely hates Alice - when the opposite is true.
 * Averted: Sally is jealous, but not unreasonably so.
 * Enforced: ???
 * Lampshaded: "Didn't Sally try to poison you because you were her rival?" "Oh, that's just crazy talk."
 * Invoked: ???
 * Exploited: ???
 * Defied: "I am jealous of her, but that doesn't mean I should try to hurt her or anything."
 * Discussed: ???
 * Conversed: ???

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