Dana feels like an outsider because she is different from everyone that's because she is a contemporary women who happens to be living in the past. She feels alienated. This alienation leads her to identify with Rufus. She says, "What we had was something new, something that didn't even have a name. Some matching strangeness in us that may or may not have come from being related." On a more romantic note, her relationship with Kevin is also built on a shared feeling of not fitting in or feeling alienated.
When she meets Kevin, Dana thinks of him, "was as lonely and out of place as I was." After becoming closer to him she realizes that he is... "like me— a kindred spirit crazy enough to keep on trying."
When Dana and Kevin come back home, their feelings of alienation make them feel a shared connection. "It was easy for us to be together, knowing we shared experiences no one else would believe."
This is a kind of love story.