I think she'd say goodbye and try to explain her leaving, likely for academic purposes I mean. And as long as the online interaction isn't all about her trying to "fix" him, I'm okay with what we have. I'm uneasy about it but that's because I don't like plots too centered around a single character so hopefully your guy can shape up, otherwise there's little initiative for my character to invest energy in forming a relationship. I would say don't get too far ahead, you don't want to be writing the story yourself after all. An idea is great but we should see how everything flows.