It seems you have one problem in the marriage.
The only concern I would have in an open marriage is the possiblity that the ONS turns into an EA. In my case I really didn't give a damb but after 13 years I had enough. It just took to much out of the marriage and the whole dymanic of the family.
Face it this kind of crap is fun and what would you rather do, go screw for the night of come home and pay some bills.
This is just one analogy, but there are a lot of thing that get neglected and the dynamic of the marriage will suffer. Ive been there and I finaly told my wife enough was enough and we need to look at having a healthy marriage not one of convienence.
Don't get me wrong I had a great time for 13 years will my wife had her boytoys, but it just wears on the marriage and the family. It gets so easy to turn to things that make us happy and turn a way from the tough things that should be address, like cutting the lawn or pulling weed in the garden.
I know for a fact that at the end of the day its just ends up to enable unhealthy behaviors.....In my wifes case at least it just snowballed into a dangerous life style that I had to correct for her.
Don't get me wrong folks can have boundries and an open marrage can work for a certain length of time but my wifes boundries only worked for so long.
This is where I'm at, at this point. But my WW made the decision for me by gaslighting me for 15 years or so and doing whatever she wanted, while I remained faithful.
So while we remain married and really don't have an intentions of D, I'll do what I need to in order to return to the place I mentally was once at.
She fully understands this however and though she isn't interested in me debriefing her on a weekly basis, if she were to ask any questions I'd respond "of course I fvcked her" as I continued to eat Nilla Wafers and watch TV.
No secrets really. Wife took 15 years and a number of men to confirm I was the guy she wanted to be with. I guess I'm just starting to explore whether or not she is the woman I want to be with.
This mess of course is also why dating hardly anyone is a really bad idea, as well as getting married young. People need to figure themselves out first, and then figure out what they want. I just started to accomplish the first part of that and I'm in my 30s, so I'm a little late to the game. But I'm learning quickly