Trivia: The movie that Frank and Rachel watch is called "Yojimbo." Yojimbo is Japanese for bodyguard.
Trivia: The script originally had Rachel singing "What Becomes of the Broken Hearted". It was Kevin Costner's idea to go with "I Will Always Love You" instead.
Answer: While she did it high on drugs I don't think she actually regretted her actions that much. She had months to track down this Armando and cancel the hit. Also she 'paid him in full, and then some' so like surely she wound't have taken the kinda cash the first time she went to find him and ask him to do it.You don't have a sudden fit of jealousy while high with loads of money that just happens to be ready to go. Must have been two separate meetings. She was jealous and hateful deep down inside and it came out while she was high and then once it started she was didn't stop it.
She didn't want to stop it until the young boy Fletcher was almost killed in the boat that the guy the Hitman booby trapped she just didn't want the boy hurt but she always wanted her sister to be done with.