I think you should talk to her.
You see, we only know your side of the marriage. Where you said this:
My wife is the controlling type always gets her way , looks after all savings and always makes the decisions .
How do we know that she is not saying to her online friends that -
- you won't make decisions (dithering over leaving her could be an example)
-isn't that good with the money (she has to look after it all)
-she has to run the show (or else no one will.)
Controlling can be another word for getting stuff done and taking responsibility. How would she see it?
How do we know she isn't saying you are so embroiled with work that you opted out of the marriage (you decided 10 years ago you wanted to leave) and therefore she's taken comfort in an emotional affair to get someone to notice her?
I'm playing devil's advocate Jack, but having been married longer than you , I know there are always two sides.
You only show your side here. You've not given any real details of abuse only that she runs the show- well, as you are both living off your joint business, maybe what she does is necessary and you don't step up and do your bit?
I don't know- I'm just saying how do you think she sees it?