He listened to what she had to say. He understood a little better why she was upset, but he had his own things to be upset about as well. Emma wasn't an innocent victim, here.
"And you went and told him that I was Max, pulling my brother into a situation that he doesn't need to be in. Especially with tall tales about being in prison and shit like that. You talk about not wanting to bring him into the public eye, but that includes keeping Max's name away from your brother too. You want me to be okay with that, but you're angry that I talked to your brother for a grand total of fifteen minutes without asking you first?" It was starting to get on his nerves. He understood that she cared about her privacy, but this wasn't about that. Colin already knew about them before he'd said anything to him.
"We barely talked about us," he told her. "I told him I liked you, because it's pretty fuckin' obvious that I do. I didn't tell him anything that he didn't already know except that I like music and computers and I'm a big, fat nerd. Details that are easy to pick out if you watch me for twenty minutes. I didn't go around you to tell him everything between us. He already knew basically everything that I told him."
He was growing more upset as each second passed. "No," he told her. "I don't have to talk to anyone about us," he told her. "The way it's going, seems like there won't be an us for very much longer because you're flipping out over a conversation, Emmy. You want your privacy, fine. Have your privacy. I didn't sign on to be a dirty little secret. How long do you think you can keep it all bottled up inside? We're supposed to run off to Vegas and get hitched. How long do you think it'll take people to look up a marriage license that's part of public record?"