You may not believe it, but statistics show that the number of older female celebs who are or have been at some point in age-gap relationships is rapidly growing. Just a couple of decades ago, in Western culture, it was still more acceptable for a man to be dating a younger woman than vice versa. But the pancake flipped, so to say, and nowadays girls have gained the upper hand in the dating business. If is good enough for Madonna, they think, then it really must be something worth trying.…