A/N Hi everyone! I had such a lovely and overwhelming response to 'When The Sun Goes Down' and I loved writing a Zollie fic so much that I'm treating you all to a sequel! Enjoy- feel free to leave a review!

It had been 6 months since Zosia and Ollie returned from New York a new couple, and once the dust had settled from her breakup with Seb, which was remarkably quickly given that Seb disappeared on sabbatical shortly after, they were stronger than ever. When they had returned from their American adventure, Elliot was hardly surprised that his young protégés had gotten together- he always had a feeling that they would work well together, and as their pairing in theatre and on the wards blossomed, he knew it was only a matter of time before they realised how well they were suited. Dom was of the same opinion, and although Arthur was initially cautious, having witnessed Ollie's cold and passive exterior towards Zosia on her first day on Darwin, when Ollie came to the flat regularly for nights in with Zosia, whether where they were to be alone or with the boys, he warmed to him as well.
'Damn it, I left my coat at yours again' Ollie berated himself playfully as Zosia pulled into the hospital car park. She rolled her eyes and smiled.
'Oh no, I suppose that means you'll have to come back to mine tonight then, doesn't it?' She smirked as Ollie leaned in for a kiss, forgetting about the company they had in the back seat.
'Ugh seriously you two, it's been six months, how can you still be this delirious?' Dom rolled his eyes while Arthur shuffled nervously, both opening to doors to get out. Zosia and Ollie laughed as they slammed the doors and headed inside to begin their shifts on AAU and Keller, and then as Zosia turned off the engine, Ollie kissed her on the cheek. She smiled.
'What was that for?'
'I just love you' Ollie smiled, and Zosia kissed him. Everything felt so right with Ollie. She was in high spirits, well, most of the time. She was still on her bipolar medication but she felt like she liked the person she was. She felt bad for Seb but also felt better knowing that he was out there somewhere, living his life, and letting her live hers. It felt easier, somehow.

She was brought out of her thoughts as soon as she stepped out of the locker room in her scrubs as Elliot informed the pair that they would be working on a pulmonary endarterectomy together, and just as Ollie disappeared to see the patient, as Zosia turned to follow, she was stopped abruptly in her tracks.
'Hello Zosia' came a voice, one familiar and one that had previously felt so comfortable but now, with a strange tone, a strange way about it, although Zosia couldn't pin down what exactly it was that made it this way. As Zosia turned around, her face and inner being dropped as she saw the familiar face of that voice as Seb Coulter stood before her.
'Seb? I thought you were on sabbatical' she asked, slightly alarmed at his sudden return. He was definitely back. He was carrying his iPad, clipchart file, and wearing an NHS staff badge around his neck. He snaked a hand onto her arm and kissed her on the cheek, something which to outsiders could be perceived as a friendly gesture, but given that Seb had disappeared when Zosia broke up with him, and now he was acting like everything was normal again, it unnerved her.
'I was, but now I'm back' he smiled. 'Aren't you pleased to see me?' He smiled, as Ollie approached from the other side of the ward, and Seb's face dropped, and his tone turned passive. 'Mr Valentine' he muttered in acknowledgement and Ollie watched him closely, putting a protective arm around Zosia's waist behind her.
'Dr Coulter' he replied in a similar manner, and Zosia not bearing the tension any more, turned to Ollie.
'We need to prep for Mr Kennedy's pulmonary endarterectomy' she smiled, and Ollie welcomed the escape, and then she turned to Seb. 'Sorry, we have to go, but it was good to see you' she smiled, but Ollie saw this was her fake smile, the one she used when she was uncomfortable and just wanted out of a situation. As the pair wandered into cubicles, they waved back behind them and Seb left the ward.
'Did you know he was back?' Ollie asked, confused and feeling protective (both of Zosia and his ego) as he picked up a chart from the end of their patient's bed.
'No, not at all. I heard he was going to be gone for a year, in the States' she replied, looking over the same files as her boyfriend.
'As long as he remembers where he stands' Ollie smirked protectively and triumphantly, and Zosia swooned playfully, bringing the back of her hand loosely to her forehead.
'Oh my hero, fighting his corner for little old me' before laughing as Elliot walked into the room.
'I didn't know Dr Coulter was back?' he mused, 'am I going to have to have words with you three? I know things were a bit...awkward for a while'
'I won't make any trouble if he doesn't' Ollie chimed in, and Elliot nodded in agreement and understanding- that was good enough for him.
However, Zosia had a bad feeling that things were about to get complicated, maybe even messy. She would have to confront this situation, just to make sure that she really was being paranoid.

Meanwhile, back in the darkness of his office, Seb hadn't seen a single patient all day. Anyone would be forgiven for thinking he was working on his research, but that wasn't true. He was sitting, alone, playing the breakup conversation with Zosia in his head over, and over, and over again. 'Valentine isn't good enough for her, who does she think she is, parading him around in front of me? She must have known that would be hard for me to see, the spineless-' and then he was interrupted by his phone ringing. His face lit up- Zosia! But no. Another PPI call. He tossed his phone to the side and took a deep and heavy sigh. 'Its you she should be with, Coulter. And you mustn't stop at any lengths to get her back.'