[Once he was more comfortable with it and knew that he could trust her, he would probably tell her, but at the moment it was not something he wanted to share. He was still dealing with his own issues about it and didn't know how someone would react to knowing about his past. He pulled his sleeve back down to hide his arm again]

Well, if it means number one, then it wouldn't hurt to use that one. A hidden message in there. Of course, the next questions might be what does D.Va stand for and which one would you prefer to have people think of when they think of you?

[Probably a little deeper than intended, but if she wasn't sure which name she should go by then that was something to consider in order to figure out which was better]

You do have time to think about that of course.