Oliver returned to the hospital room with so much venom, hatred and guilt rattling through his very soul. Hearing everything in entirety without realizing what roles he had played from the onset made him fall into despair. He had hated Vukan with everything within his soul and often wanted to let it out or even show it when he had the chance and opportunity to do so.
It was why he attended the dinner party in the first place and why he had taken Bruce Scott along with him.
In hindsight, he would have done things differently and he knew it. More so, his decision to steer clear of Vukan felt like a haunting mistake he was never going to be able to do away with. he felt lost, miserable and sad beyond his core while he stood and faced every single person in the room whom he felt had a part to play in the incident as well.