"Oh. Uh, okay?" That was all rather abrupt. "I can bring it up to you when I'm done - or you can hang out, if you want. You're not going to be distracting; this is pretty simple stuff."

She may not want to stay, but Tony doesn't want to chase her out or anything. He doesn't usually mind having company while he's working. If he needed privacy, he'd work up in his and Gene's room.