Murder-accused Patrick Quirke has denied trying to control Mary Lowry by managing her financial investments, the Central Criminal Court has heard.
The jury has been hearing evidence of Mr Quirke's interviews with gardaí while under arrest for alleged harassment of Ms Lowry in 2014.
He denied in one interview that he was getting "cash on demand and sex on demand" from Ms Lowry.
Mr Quirke, 50, of Breanshamore, Co Tipperary, is accused of murdering Ms Lowry's boyfriend Bobby Ryan, a part-time DJ known as Mr Moonlight.
Mr Quirke has pleaded not guilty to the murder of Mr Ryan at an unknown location on a date between 3 June 2011 and 30 April 2013.
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Mr Ryan's body was discovered by Mr Quirke on Ms Lowry's farm.
Inspector Dave Buckley was taken through memos of interview by prosecuting counsel Michael Bowman.
The jury heard that Mr Quirke was arrested in January 2014 for alleged harassment.
During the interview he denied that he had become violent and had pressurised Ms Lowry to compensate him for the loss of a number of cows form his herd.
He explained that his cattle became ill after he took a cow with BVD into his herd from Ms Lowry's farm.
He denied that the discussion over compensation had become heated or that he had used both hands to push Ms Lowry causing her to fall over adding: "Absolutely not. I never raised a hand to her or anyone else."
He said Ms Lowry had suggested compensating him but did not have the knowledge to know how much. He did not want to suggest a figure.
He said Ms Lowry later suggested that he would not have to repay €20,000 she had loaned him in lieu of compensation for the loss of his cows.
Mr Quirke told gardaí he managed Ms Lowry's investments after her husband Martin died.
He said he knew almost everything about Mr Lowry's investments before he died.
However he denied that his management of the investments for Ms Lowry amounted to control or an attempt to control a vulnerable woman.
He said he did not get paid for managing her late husband's investments and it was not the same thing as controlling them.
Gardaí suggested it was a "win win" for him as Ms Lowry had invested money and he was to have a 50:50 share of the profit.
Mr Quirke said that arrangement was separate to the others.
Ms Lowry had put up €80,000 for an investment known as a CFD which made a profit of €80,000 over 18 months and was split evenly between them.
He said he bought a Jeep and a cattle trailer with the profit and put the rest into his farm account.
Gardaí put it to him that this was another example of him trying to control a vulnerable woman.
He replied: "I cannot accept that."
Gardaí put it to him that he could "see she had considerable cash flow and you were into the CFDs and you guided her towards them" and received a profit of €40,000 from her €80,000 investment.
Mr Quirke replied: "I had put work into it, would you go without wages for a year-and-a-half?"
Mr Quirke also denied that he was ever to benefit from Ms Lowry's will.
He told gardaí if he was an executor of the will there were rules which stated he could not benefit from it.
He said he had suggested to Ms Lowry to make provision for a new car and a house extension if he was to take her three children in the event of her death.
He said it was to be written into the will that way and there was to be no compensation or payment to him.
He rejected a suggestion from gardaí that this was another way of taking control.
He said he was asked to look after his best friend's children and he agreed.
He also denied that Mary Lowry had given him €50,000 and said he would challenge anyone to find evidence of that.
He told gardaí that it was a "downright lie" and if she had given him a cheque for that amount there would be a paper trail.
He also denied, when put to him by gardaí, that he was "getting cash on demand and sex on demand" from Ms Lowry.
Mr Quirke told gardaí he had a close and intimate relationship with Ms Lowry from January 2008 to December 2010. He said he was happy with his wife during that time but his relationship with Mary was based on a combination of companionship, intimacy, trust and honesty.
He disagreed that Ms Lowry was vulnerable at that time and told gardaí he believed she knew what she was doing in going to bed with him.
He said the relationship soured in December 2010 when he found out Mary had been seeing Bobby Ryan and that she had deceived him about that.
He told gardaí he found out when they were in bed together. He took her phone from under her pillow and searched her text messages as he had a suspicion she was not being honest and discovered texts to Mr Ryan.
The court heard he sent a text to Bobby Ryan, telling him that Mary Lowry was already in a relationship with him.
Bobby Ryan rang the phone and Mr Quirke told him, "I am the other man, I'm sorry you had to find out this way," before hanging up on him.
He agreed with gardaí that he was in a rage but thought he and Mary were close enough to get over it. The court heard Ms Lowry finished the relationship and Mr Quirke was sad about this.
But he denied that he had mentioned self harm to her. He said she had misinterpreted a text from him.
He told gardaí he later met Bobby Ryan who wanted to meet him in Thurles and apologised to him and he and his wife later went to a concert with Mary and Bobby.
He said he could see a situation where all four of them could get on. He denied telling Ms Lowry that he did not like Mr Ryan and that he smelled.
Mr Quirke told gardaí that he had contacted social workers about Mary Lowry's children because he said he feared for her boys after an incident where she had left the children overnight and they were distraught to find she was not there in the morning.
He said he had not witnessed this directly but his mother in law had told him about it. He said the social worker told him he had a cause for concern. He told gardaí Ms Lowry had lost her way and was in a situation where she was partying and neglecting the children.
When Mary Lowry confronted him about this, he told her it was not him who had contacted social workers. He said he was afraid of what she would say and do to him. He said he was afraid of how angry she would be.
Mr Quirke agreed that after Bobby Ryan went missing, he had become close to Mary again for a while, although he said it was not as close as the first time.
He said they had stayed in a hotel in Killiney in Co Dublin and gone to a show. But it was not the same. There was doubt on his part as he had seen a different side of her over the previous 15 months.
He had a trust issue he said and she probably had a guilt issue. He denied having discussed anything about having a "no strings attached sex affair" as "Mary was not that type of woman".
He agreed he was not "that type of man" - he was a man who had done something very stupid and woken up to it. He said the relationship ended again in March 2012 when Mary met another guy.
The court heard Mr Quirke claimed he told his wife Imelda about the affair at the end of March 2012. He said this was before Mary sent his wife a card.
Mr Quirke told gardaí he paid €12,600 a year to lease the farm from Ms Lowry.
He agreed that he also received the Single Farm Payment which meant renting the 60 acres actually only cost him €1,600. He agreed this was beneficial to him.
Gardaí said this formed "part of the allegation" against him, that he suffered no financial risk.
Det Garda Martin Steed put it to him that he had used Mary Lowry in every way.
Mr Quirke replied "the game was a two-way street". He was asked: "When things turned sour, you turned sour?"
He replied: "No I didn't."
Gardaí asked: "You had her in the palm of your hand", Mr Quirke replied "I don't accept that."
He also denied stealing Mary Lowry's passport and said his answer to her that he had sold it and made money on it was him just being sarcastic.
During cross examination, defence counsel Bernard Condon pointed out that Mary Lowry's allegation of a €50,000 payment to Mr Quirke was later changed by her in a 2018 statement to €20,000.