Let me take a stab at this:
Their little trist ended horribly, as all things that must end usually do.
Otherwise, why would the fun stop....
From what I’ve read, I think it’s more about the money. from the pics I’ve seen of the stabber, the wife, being a female, didn’t look like his type...
No, it doesn’t sound like an affair, just embezzlement.
Its not at all clear to me who was trysting with who, or if there even was a tryst. I read some other backstory to this and it seems the killer, who BTW reminds me a lot of George Costanza, was a third wheel in a strange, too close relationship between the three. I had a relative like that for a while. They eventually got married and have a life of their own now. But it was awkward at the time. As for the murder, it may have been jealousy combined with greed, or a tryst with, shall we say, an unexpected twist to it, but the standard assumptions may not apply. Keeping an open mind ...
it would be wise, take heed, to never have affairs. why people believe that because you’re havong problems with one person, the solution is to bring in another person, is beyond me.
men having wife problems, they think the solution is to add another woman!?! women having men problems, the solution is to bring in another man?!? people having people problems, the answer is “more people”!?! nope. t’aint the answer.