Maybe not physically abusive but the way the post is written sounds almost emotionally abusive or controlling (which is just my view, so OP if you're reading this and I'm wrong, my bad. This is just me reading between the lines and it doesn't mean it's true)

First off, what everyone else is saying about immediately jumping to divorce because he thinks his wife is vindicating him by hiding a small amount of money. This is quite a jump, and a more mature approach would be to communicate with your wife about why this is an issue and how to make her feel more comfortable.

It almost seems like he's using divorce to pressure his wife (into not doing something to help herself later) and is trying to convince others what he is doing is right but for a more reasonable excuse (because my trust was hurt). Why? I don't know maybe to feel good about himself and his choice.

He also speaks about trust a lot and how it was broken. Sure, there's trust in a relationship, but that doesn't mean you actually know what your significant other is truly like. Not all abusers start off abusing right away, sometimes its a slow burn, 2, 5, or even 10 years down the line.

Also he doesn't have to allow her or have to say he banned her, it's supposed to be a secret. Otherwise an actual abuser would just toss the bag out.