User blog comment:Gumball2/TDPI Episode Four Reaction/@comment-4060028-20140710235858

It was Samey's plan to use the apple, not Jasmine's - she states in a confessional that Amy "takes everything away from her," so she uses that to cause Amy to take the poisonous apple. Jasmine knows that Samey is pretending to be Amy, and convinces her to keep up the charade by acting in-character (that is, a complete jerk).