Trivia: "Love the One You're With" was written by Stephen Stills about / for his then-girlfriend, who eventually became the mother of actress Christina Applegate.
No one cares except the media vultures who try to make us care by putting these stories on the air / newspapers / internet. Case in point: Lyndsey Lohan is all over the news, but no one really gives a crap. If she disappeared from the news tomorrow (oh please please) no one would sit around wondering, "Gee whiz, I wonder what LiLo is doing right now? I sure do miss her."