Hello, one of the things that can be very irritating is when kids, in all their innosence play their parents out. Daddy says yes, mummy says no, Mummy agrees, daddy not. Or whatever combination.
I am a follower of Cesar Millans "Rules, Bounderies, and Limitations". Works for dogs, should work for kids.
But first, send the kids to Grandma and Granddad if possible for the weekend. Go out on a trip together, just the two of you and ask yourselfs, what shall we do with the kids. And I dont mean to put a collar on their necks... (hmmm wait, that could be a good idea. No, back to serious) Talk about how to react to kids, talk about how to react on that Daddy yes/Mummy no situation. One thing works perfectly.
Kid comes and says daddy/mummy yes or no. Reply, Ok, I will discus it with him/her when he/she comes home. That gives you and your wife the time to react similar to them. When you both learn how to react to them in a similar way, you will be able to get them easely under control. Give the those rules bounderies and limitations. Kids need that. Give them repercussions when they dont behave.
I had once two kids to take care for a weekend long for friends who just wanted to have a weekend of.
Fine, so I picked them up and when I got home I told them..
"listen, I have planned five nice things, themepark, pancakes, swimming, lunapark and BBQ. If you behave, we will do all these things. If you dont behave, everytime I get annoyed, one of those things will go of the list. If you not behaving at all, it will be a long boring weekend, and I can read my favourite book."
God, what was I tired after te weekend and we did all these things and more, because they were just fine.
I had a "son" for six years. (long story, not interesting here) he did see me as his dad. We drove with racecars on the Nurburgring in Germany almost every weekend. And he was allowed to come along. Same thing there. You behave and are allowed to be with us there. If not. Tough luck.
It worked.
It worked for me. But Iam a very straight forward guy. And gave him rules bounderies and limitations. And in these things, we could have all the fun in the world.
So, maybe, just maybe, it could work for you both. If not, well, at least you had a good weekend just the two of you.
Greetings from Robert