Exactly what I was thinking...Sounds to me like he has some young broad running around spending his money, he's suckered into it because he wants the young-puss so deals with it. The bitch was/is probably sick of his old 66 year old cock, so went out and was being a drunk slut (which is a fair assessment considering she's engaged to a wealthy man that is 40 years older than her = *cough* whore *cough*). He called her out on being out whoring, she retaliated like a drunken female would, random thrashes and throwing a candlestick; where jerry then got pissed and probably called her out on using him for his money because she is worthless and would be better off just ending her miserable skill-less self. the fight escalates, she tries to go back out, he doesnt want her to due to suspicion of her already whoring around, so he holds her back. when the cops showed up, she needed to paint him as the bad guy, so added in the slapping to her head while holding her back from leaving part. may be a few missing puzzle pieces here but this shit is pretty transparent and jerry really is not in the wrong here (other than choosing to wife an ungrateful selfish young slut)
People are so quick at jumping the hate wagon on the men as soon as there is a woman involved. They seem to fail to understand that all women are not always the innocent victim when it comes to situations like these.