Gibson was married to Robyn for like 25 years, had 7 kids with her. Given he has been in Hollywood for such a long time, and has therefore seen what Hollywood is all about - its really dumbfounding to me why he would give up his family for what was clearly an unstable relationship with this Russian bird.
If he admitted to punching her, then he probably made the outburst that she released. It is quite dramatic if you have not heard it. I would like to know the mechanism, i.e. exactly how it was recorded. If its not a phone message, and it is not; how did she set it up and did someone help her?
Why do successful men fall for something as trivial as sex in a way that ruins their reputation, legacy and hurts their family? Its not like he could not get it on the side, discretely. People close may look the other way. Not so with Spitzer and Morris; but they are political figures. Hollywood as in Europe is full of willing mistresses. Gibson is a political figure in a way, so he should expect to be outed for having a mistress, but so what? It would cause less damage than this. Come on Mel.