Show producer Tommy eventually revealed Fitzy had been conned into texting a woman named Sophie in London, explaining, "We just needed someone who had a UK number".
Screenshots of the embarrassing texts from 2017 show an excited Fitzy chatting to the person he thought was Niall about footy, Australia's Marriage Equality vote and setting up a time to go for a pint.
"The whole time I was saying there’s something wrong about this," Fitzy said when they revealed he hadn't actually been texting Niall... ever.
And it sounds like they might never go for that "pint" as promised, as the wind-up may have broken Fitzy's heart a little too much.
"You know what," Fitz said after they revealed the entire thing had been a sham, "we're not going for a pint now. You can go get stuffed."
You can read the text messages below. Poor Fitzy!