Troubled Ruby handed herself in to the police after she confessed to tampering with Indi's car brakes in an attempt to kill her, causing Dexter to have a horrifying road accident.
Recalling her feelings upon learning the details of the plot, she said: "I was like, 'Really?'. Because she's been through so much sadness, I wanted her to have some light and go out on a hopeful note.
"I thought [the exit storyline] was a bit unfair because I thought, 'How much can they heap on her?'.
"Emotionally, I was exhausted and didn't know how much I could go through - she lost her mum, and been to rehab, and had a rapist father, and her sister's her mother, and she's had crazy break-ups."
Breeds concluded: "I was so tired. There was no breathing space or light for Ruby and it just got worse and worse, and the way she went out is so sad."
However, she also acknowledged: "I spoke to the writers about this a lot, because I want her to be loved and I don't want her to be a psycho bitch.
"But then I looked at the justification - it's not even six months after her mother died. Who's going to be happy and stable? It would be wrong to portray that people could get over something like that."
Home and Away fans in the UK will see Ruby's final scenes on Channel 5 on Wednesday, October 10. Her last scenes aired last week in Australia.