Estate agent, 22, fell to her death in stairwell at work Christmas party after rowing with boyfriend 'who was angered by boss putting his arm around her' Danielle Cooke's body was found at the foot of a fire exit stairwell next to Reading Football Club's stadium after she attended work Christmas party Prior to her death the 22-year-old had rowed with boyfriend Alex Lloyd A partygoer plummeted to her death at a football stadium hotel after a blazing row with her boyfriend at her firm's Christmas party, an inquest heard today. Danielle Cooke's body was discovered at the foot of a fire exit stairwell at a hotel complex attached to Reading Football Club's Madejeski Stadium. Prior to her death the 22-year-old had tearfully argued with her boyfriend, Alex Lloyd, at the boozy party and awards bash, and had to be comforted by her estate agent colleagues from firm Romans. Danielle Cooke's father Paul said that his daughter had been a heavy drinker and that her three year relationship with Alex Lloyd had been a rocky one An inquest into her death heard how Mr Lloyd had become jealous that Danielle had been talking to her boss and that Mr Lloyd believed Romans regional manager Richard O'Neill had put his arm around her. The pair had a noisy argument in front of other partygoers before going their separate ways and, the inquest heard, Mr Lloyd had been searching for Miss Cooke before returning to their room - only to be awoken by police who informed him that his girlfriend's body had been found. Richard O'Neill, Danielle's boss, told the hearing that Miss Cooke had told him she felt under-appreciated at work The manner of her death remained a mystery today after Berkshire Coroner Peter Bedford said that he could not be sure whether Miss Cooke, who had a history of depression, had thrown herself over the stairwell bannister, slipped, or had even been pushed - although police had said there was no evidence of third party involvement. CCTV footage showed that Mr Lloyd was on the other side of the Millennium Hotel in the 12 minutes between Miss Cooke using her key card to enter their room and the time her body was found by hotel staff. Mr Bedford asked Mr Lloyd, who admitted the argument started after he had become jealous of her conversation with Mr O'Neill, what he thought had happened. 'Not sure,' he replied. 'It's just an accident.' The inquest in Windsor, Berkshire, heard how another partygoer, Katherine Cresswell, had intervened in the argument between the couple. She said that the pair had been shouting at each other from across the table, in front of other guests, and that Miss Cooke had grabbed Mr Lloyd's arm and dragged him out of the room. The inquest heard that Miss Cresswell had believed Miss Cooke was about to attack Mr Lloyd, and so pulled her away from him, before comforting her. 'She seemed really drunk, she was very upset,' said the training manager. Pictured left to right are Danielle's father Paul Cooke and her boyfriend Alex Lloyd, who spoke at the inquest about the 22-yeard-old The catalyst for the row had been the conversation between Mr O'Neill and Miss Cooke, the hearing was told. With both of the Romans employees suffering from hearing problems, they had their heads close together to allow them to hear one another over the party buzz. 'Alex looked uncomfortable with the situation, he looked quite cross,' said another reveller Jordy Swanborough in a statement. Danielle and Richard were sitting close to each other talking, there was no suggestion they were touching each other. Mr O'Neill told the hearing that Miss Cooke, who worked in Romans" Maidenhead office, had told him she felt under-appreciated at work. Miss Cooke's father Paul said that his daughter had been a heavy drinker and that her three year relationship with Mr Lloyd had been a rocky one She had been nominated for a prize at the awards ceremony that evening, December 21, last year, but had failed to win. 'She had bottled it up for a while and she had a lot to drink,' he said in the statement he was taken through by Mr Bedford. She told me she felt under-appreciated, she was taking on more than some of the senior members of the team. I told her I would sort it out in the new year. At around half past midnight on December 22, Miss Cooke's body was found at the foot of a stairwell by a member of the hotel staff, Rebecca Inglis, who immediately called for an ambulance. Paramedics arrived at the scene within 10 minutes, however Miss Cooke was already dead. A post mortem examination revealed she had died as a result of a severe head injury, including a traumatic brain and spinal cord injuries caused by the fall. A post mortem examination revealed she had died as a result of a severe head injury, including a traumatic brain and spinal cord injuries caused by the fall Her blood alcohol level was 263mg per 100ml of blood, around three times the drink drive limit of 80. Miss Cooke's father Paul said that his daughter had been a heavy drinker and that her three year relationship with Mr Lloyd had been a rocky one. He also said that she had tried to take an overdose of paracetamol as a teenager and had stabbed herself while at university - but that both times she had told someone what had happened so that help could be summoned. Mr Cooke said his career driven and ambitious daughter was an 'emotional' person, but said that he thought her death had been an accident. 'In my mind she actually had too much alcohol and really didn't know what she was doing,' he said. Detective constable Graham Holdsworth told the hearing he had been unable to piece together what Miss Cooke had been doing between 18 minutes past midnight when she entered her room, and 30 minutes past when her body was found. 'There seems to be only three possible conclusions,' said Mr Bedford. One - she fell over the bannister rail accidentally while unsteady either through drink or a combination of drink and emotional upset. The bannister rail was quite high on the flat suggesting she had to climb over it which makes it more likely that the fall came from the stairway itself where the barrier was lower. Two - Danielle deliberately threw herself over the bannisters while highly emotional due to the events of the evening and emotions heightened by the amount of alcohol. As I have mentioned, Danielle did have a history of self harm. 'I explored it with her father and was told she could be impulsive, that a row with Alex wasn't in itself that unusual and normally it would be rather more than a short period before she would calm down.' Mr Bedford said that the third explanation would be that Miss Cooke had gone down the stairwell 'with assistance.' 'There's no evidence of that occurring. It's something that police have clearly looked at very long and hard and there is no suggestion whatsoever that Alex could have been involved in such an incident,' he said. Mr Bedford said he could not be sure 'beyond all reasonable doubt' what had happened and recorded an open verdict.