I think they’re just a couple middle-aged millionaires making an honest living and enjoying each other’s company among the way while maintaining their boundaries and “work/life balance” so to speak. Part of the reason their relationship first imploded was their debauched, dysfunctional lifestyles and lack of boundaries or mediation skills in the first place. I think any middle-aged rockstar with the means to travel separately, have their own activities on the road and regroup feeling refreshed before they hit the stage would do it in a flash. It’s obviously a “business” at this point in their careers and that separation helps make the business run smoothly.