You know that moment on Facebook when the librarian you befriended four years ago as an intern likes your slightly off-color status update? Or when your aunt, your ex-boyfriend, and your neighbor all comment on the two-year-old photo of your pet fish? Things can get awkward on the 'book. Circles of friends mush together, people you never thought you'd see again show up, and snooping around in other people's business gets waaaay too easy (you know you've done it!) But sometimes that mushiness works out. Because sometimes it reconnects you with awesome, interesting people like Katie. I met Katie in a hostel in Florence, Italy during an epic 3 month long trip through Europe. She was funny and friendly and living in Greece at the time. We parted ways just a couple days later, but connected on Facebook first. Fast-forward 3 years and Katie's living in Boston. After a few messages back-and-forth, we made plans to meet at an arts festival downtown. Which...