I have this friend that we'll call "z" and she's friends with another person who we'll call "x". So "z" is friends with "x" and I am also friends with "x" but me and "x" aren't that close and never really talk other than the occasional 'hi' when we pass each other in the hall or when we are working on something together. "x" and "z" are really close and I'm working on getting closer to both of them but I will say that I might be closer to "z" than I am to "x".