Julie Harrison really wanted to slap him, completely ignoring the occasion and only thinking about his trivial issue!
Having said that, she seemed to have been cold to him for quite a while, first not forgiving him for his petty actions, then because Jaysen Smith and Sienna Harrison had taken him out, leading to the car accident, resulting in a miscarriage. Instinctively, she distanced herself from him and moved out of his room.
She knew it couldn't be all his fault. Theo Scott's jealous wife had been watching Sienna Harrison and the others for some time, or else they wouldn't have been so familiar with the routes. It was only a matter of time before something happened. It just so happened that it occurred when he asked her to leave.