The main issue in relationships today is women’s hypergamy run rampant, too many past flings, television and need for attention. Women constantly manipulate and evaluate their man. Is he better than her ex, why did he do that, my ex did that, my ex was better there, he was amazing in that situation etc. If enough negative strokes are taken her love will evaporate (sometimes overnight) and she will target another man whilst still holding only her man (this is usually unconscious). Once another man is obtained complete emotional detachment takes place. It is a bitter pill to swallow.
Even if a man is Batman- gentleman, charming, handsome, driven, passionate, mature. A woman may be swept of her feet but then the Joker will appear more exciting and a better option. And if enough advances are made Batman is gone. Batman is the boring and bland ex. Joker is amazing.