Sherlock glared at Mycroft, standing up. "If you're going to be an ass about everything then get out," He snapped, having just about enough of is brother. It was bad enough that he was uselessly helping, but now he was just insulting him. Mycroft returned his glare, the brothers having a stare down. The only reason Sherlock looked away was because John cleared his throat. "Will you two stop?" He huffed, already done with hearing the two brothers 'tiny' fuss. Sherlock frowned, going back to his files. Mycroft got up, patting his pants down. "Well then I assume this is my queue to leave... Miss Winston, John.... Sherlock." He gave a little bow to his head, Sherlock giving him a venomous look.
When Mycroft left Sherlock went back to his normal chatter to Isabelle, almost always answering his own questions. Around midnight John had left to go back to Mary, so it was just him and Bella left. Sherlock looked up from the file Mycroft had given him, and over to Isabelle who looked like she was taking a break from reading. "I'm sorry that my brother questioned you when he first got here, about what our friendship was... He's a jackass."
When Mycroft left Sherlock went back to his normal chatter to Isabelle, almost always answering his own questions. Around midnight John had left to go back to Mary, so it was just him and Bella left. Sherlock looked up from the file Mycroft had given him, and over to Isabelle who looked like she was taking a break from reading. "I'm sorry that my brother questioned you when he first got here, about what our friendship was... He's a jackass."
(OOC: Sorry that was so short, I didn't really know what to do, and I thought that maybe you'd want Sherlock to show an actual human emotion? xD... Also I'm busy so I had to get up multiple times so I lost all my ides.)