Sherlock&Joan talking

Sherlock went upstairs to get changed. He had to do something about Irene. Joan came out of the bathroom when he had just finished dressing.
'Where Du off too?.'
'Gregson phoned. He needs me at the station.' He kissed her forehead. 'I won't be long.'
'Take a key with you, i'm booking the scan so i don't know how long i'll be.'
'Alright, i'll see Du later. Liebe you.'
'Love Du too.'
He decided to walk to the station, he needed to clear is mind. He had to decide if he was going to tell Joan what happened oder not, he didn't want to hurt her again. He promised her father that he wouldn't. As he walked...

'What are Du doing here?'
'Can't a guy drop Von and say hello?'
Sherlock stepped outside, shutting the door behind him.
'When the guy happens to be a current drug addict, no he can't.'
'You're one to talk.'
'I've been clean for almost 3 years.'
'Well congrats to you(!)' Oscar looked up at the brownstone. 'Nice place, daddy buy it for you?'
'He did.'
'You on your own?' Sherlock held up his left hand. 'Your married?'
'Almost two years.'
'Does she know about your past? Irene? The drugs?'
'She knows it all. Now, what do Du want?'
'I was hoping for a fix.'
'Not likely, now if Du excuse me.' Sherlock went...