Shane Jones' partner, Dot Pumipi, says the MP's greatest fear in making the decision to resign was that his phone would stop ringing and he would get withdrawal symptoms from the sudden lack of attention.
Ms Pumipi said Mr Jones had pondered some time before making his decision.
"In the last couple of weeks with the decision he's been making he has had 'withdrawals', and that is purely because of the fear his phone will stop ringing. He was worried he would wake in the middle of the night and feel that withdrawal. He's so used to his phone ringing, he's that kind of person, and all of a sudden that's going to stop. When it comes to the end of Parliament it's going to be tough and he's going to feel a bit lonely, I think."
However, she said as soon as he made his decision he was happy with it. The final decision was made on Sunday night after Mr Jones talked to Ms Pumipi and then his father.