Justin Bieber took Selena Gomez to L.A.’s Staples centre to watch the tear-jerking romance ‘Titanic’ alone.He said to have rented out the entire arena so that the young couple could watch the Oscar winning flick.Bieber didn’t even have to pay for renting the arena as The Staples Centre’s management allowed him the place for the night for free as the singer had sold out the place three times. “Romance isn’t dead,”