It really depends. If her boyfriend is your friend, or you are just trying to make another girl jelous, it really isn't worth all the trouble. On the other hand, if you accually like this girl, you...
you shouldn't care about it so much
cool down
let them undrestand what they do
you will be considered much more valuable if you would have such a manner
you will make them embarrased!
Yes! not only can you connect with family and friends but you can chat and so much more! If you dont have one.. make one! But never make it a top priority. Are you joking. Facebook is a hazard!