As much as people say this is normal behavior, honestly, it is not really. I mean, I can think of no one that I'd be so curious about that I'd seek out their address and go drive by their house. If I have a reason for being there: I've been invited to their house for a gathering, I'm taking my son there for a study session with friends, they say they are having a great garage sale, they've mentioned the great Christmas lights on their street or something, then yes, I'd look up a person's address and go by or to their house. But to just look up someone's address and drive by out of some need to know more about them or be somehow closer to them? That really is a bit odd. Maybe "normal" for therapy behavior to some people, but it is a bit odd for real life.