Read more: This is what happened to Natalia Kills and Willy Moon
Since the X Factor, he has been gigging around New Zealand and soon plans to release a string of singles.
He has also written a song about his experiences on the show called Addiction.
"The track is about where Natalia Kills is at now and the highs and lows I went through because of her," he says.
"I wish her and Willy well. I just hope they never do anything so stupid and uncalled for again."
Read more: X Factor's Joe Irvine: A man who managed to beat the bullies with a calm smile
Irvine advises any other people considering appearing on a reality show to take plenty of support with them.
"I got no assistance from anyone afterwards and it has left me thinking reality shows are just staged for a big publicity stunt. Anyone appearing on one of these things needs to be mentally prepared for anything."
Read more: How reality TV creates a baying mob