Re: I gotta vent, because this is outrageous.
I'd keep out of it. Your job is to support your own wife. It's worth pointing out that what the cheating husband is doing is a classic trick of blaming the wife for his adultery. If she doesn't realise this then she will start to blame herself. Their marriage might have been ill advised and doomed but her husband's decision to fuck someone else is absolutely not her fault.
They couldn't hit an elephant at this distance.