I'll try to make this brief, but if you need more details the are several years of posts from this profile that are all on what exactly was happening... So here it goes:

I'm a male (46), she is female (39). We married 10 years ago, she had 3 kids from her previous marriage, I had none and had never been married. We had two more kids together.

She had never worked in the relationship. At first it was the pregnancies, then health issues following the pregnancies in connection with caring for young children. These last few years there have been fewer reasons for her not to work, and now that our youngest is in school I see no reason she couldn't contribute.

She had an affair online and asked me to open the marriage so she could legitimately begin sexual relations with her affair partner about 3 years ago. I didn't leave then, but now wish I had.

We have a dead bedroom that predates the affair. After the birth of my first child I would say that it is typically every two to three months... With some periods of shorter durations, and some of longer durations.

Anyway, so I'm wanting out, but there are so many ties at this point. I'm looking to first remain control of our finances which I foolishly let her take control of years ago. I did so, because I want good, but turning them over to her had been worse.

So in all practicality all I really have to do is change the account where my paychecks are deposited to an account I have that she doesn't have access to. My plan is to pay out bills and debts out of that account, then slot l split anytime that might be left between her account and my own. The problem is I don't have all three details of all our current financial obligations. She has a whole lot of subscriptions coming out of various accounts, as well as auto pay stuff and then there are just the plain bills...

Given time I can untangle all of that, but I'm going to have to sit her down and explain what I'm doing and why I'm a way that I can get her help, because otherwise figuring out this mess will take months, and all with a pissy wife...

Anyway, any suggestions what the best way to do this? How do I set the stage for this conversation, and how do I make sure the likely blow up won't happen in front of the kids? Suggestions?