The three-time world champion, who has won 22 ranking titles, has battled with depression in recent years and has been seeing sports psychiatrist Dr Steve Peters in a bid to solve his problems.
"He'll kill me for saying this and opening up like this," O'Sullivan said. "I will talk to him and I think for my own peace of mind, my own life, there is life beyond snooker.
"I still want to work and I'm sure I'll find stuff to do but I want to share my life with someone."
O'Sullivan has reportedly been single since he split from girlfriend Jo Langley two years ago.
O'SULLIVAN & QUITTING SNOOKER
- 'I haven't got long but it's too early to quit now'
- Asked if he still needs snooker, replies: 'Not really, no. I don't.'
- 'I'm quite happy to walk away,' he says in a row over prize money for maximum breaks
- Hints at retirement after defeat by Ryan Day in Beijing Open
- World Snooker says he requested to quit the world championship but changed his mind the following day
"I don't want to be living on my own, I don't want to travel around the world on my own feeling anxious, carrying these emotions. To be the real Ronnie, I need to get away from what's causing the problem," he said.
"I want to enjoy my life, I'm 36 and I would like to meet somebody and share my time with someone. When I'm feeling the way I feel between tournaments I find that very difficult to happen. I think there's more to life, or there is for me."
In October, O'Sullivan said he felt "blackmailed" by the game's governing body making ranking points available for smaller tournaments.
Last season he pulled out at late notice from both the Shanghai and German Masters, citing personal and medical reasons.
World Snooker chairman Barry Hearn has previously said the sport can cope without its biggest star if he is unable to halt his disaffection with the game.
Trump, who will play Stephen Maguire in the quarter-finals, had a different view of the enthralling encounter, which featured nine breaks in excess of 50 in the 11 frames.
Beating O'Sullivan a 'shock' for Trump
His 51 proved decisive in the final frame, with O'Sullivan failing to seize the chance to force a respotted black when he got a kick on the penultimate red and missed a thin cut on the black that followed.
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