Poll: Should I add my crush on Facebook?

Should I add my crush on Facebook?We don't know each other very well but we've talked a couple times & I'm best friends with his cousins & they talk about me all the time. But about 6 months ago I asked him for his number & he said no because he doesn't give his # to people that he doesn't know very well. Very understandable.I just don't want the same outcome like I did when I asked him for his #...Facebook is a lot less private than a # though. What should I do?! BTW we have three mutual friends so that's the only reason I know that he has Facebook.