The Nic thing is one of life's great mysteries. When Jonesey had some cash, Nic left a humdrum admin gig to become J's gopher. She got her feet under the table, vicarious fame and a decent gaff. When she moved to Low Row, Nic got (another) paid for home separate from the Big 'Ouse (the deets are probably still online... search Lawn House, Low Row... there's an old pdf of the sales details). It was here that Nic's role took on a darker hue... she was 'tasked' with sweet talking their neighbour so J could get her hands on his land. It all went a bit wrong, the neighbour thought Nic's intentions were more sincere and it kicked off.
Then, of course, HMRC caught up with Jonesey and the jig was up! Bankrupt and disgraced, the houses had to go and she was allowed a modest pittance to exist by the Receiver (it's a beautiful holiday home now, BTW.)
By this stage, bearing in mind how their relationship had developed, J had no option but to keep Nic on (indeed, while J was forbidden to be a company director, Nic was the sole director of Liz Jones Goddess Ltd (yes, really). Now the company is rollicking along with a credit score of 25/100 and is officially 'high risk, Nic is only Company Sec now. The mystery director Adam Kelly resigned in 2018... possibly appointed by the Receiver?
So, now being codependent and knowing where the metaphorical bodies are buried, Nic's future is assured with, I suspect, many promises of 'jam tomorrow' when the novel/screenplay/tour finally pay off (bwahaha). I would be fascinated to know what will happen when J finally gets put out to grass...