Justin Bieber and Selena Gomez

The couple, who have been on-again-off-again for two years, are now back off — again. Hear that sound? It's the collective cheers of throngs of tweens from Bieber Nation. Is there nothing sacred people? (Photo by Christopher Polk/Getty Images / January 5, 2014)

So, Justin Bieber is in trouble. Again.

Big trouble, actually, as he faces charges in South Florida of DUI, resisting arrest, driving with a suspended license and drag racing. If bad judgment was a crime, he'd be charged with a felony.

Now everyone is really, really worried about the Biebs. I'm not. I'm worried about Selena.

Selena Gomez, a Disney darling and star in her own right, is the on-and-off girlfriend of Bieber. When Selena recently canceled her Australian concert tour due to illness (possibly Lupus-related), it was Justin who flew to her side. He calls her the love of his young life.

And Selena let him back in. At least a little bit. A recent Twitter post shows them hugging, with Justin's words: Love the way you look at me.

Selena looks at him through the eyes of Cupid.

Why do so many good girls love bad boys? It's an age-old question. But an important one, because bad boys hurt, abuse and break the hearts of good girls (and women) too often.

Chris Brown. Charlie Sheen. Ike Turner. Fill in the blank for yourself.

And sadly, once hooked, good girls too often follow the bad boy down his path of destruction.

I hope Selena pulls back. I hope she doesn't run to his side right now. I hope she doesn't show up next to Justin in court. I hope she breaks the cycle.

Bad boys need love. But first, they need to fix themselves, before they drag a loved one down with them.

I am a father of a beautiful girl. And I fear that one day she will walk through my door and say, "Daddy, I love him," and point to Justin Bieber - or a version of him.