For some greater context, bwt42, I don't know how long you've been around this site or read about true crime, but those of us who have been posters or lurkers for a while, or who have read any amount of true crime, know this story backwards and forwards. It's sad how many times a case very much like this comes up: wife goes missing, husband is usually the last one to have seen her alive, the husband makes a handful of comments we've all heard a hundred times, and the thread is usually barely a few pages long before someone says "We've heard that before...", which is basically shorthand for "the husband did it". And usually they are correct. Statistically it is so. After you've been involved with a large number of these cases, you start to lose any sympathy for any justification of the murderer's point of view.
No one ever deserves to die for being in an unhappy relationship. Marriage vows don't make it okay, religion doesn't make it okay, being cheated on doesn't make it okay.
I know you've referenced being 'beaten up' on this thread, and I suspect some people WOULD like more information about your personal context here, but I thought it might be helpful for you to understand ours as well.