My dual relationship now is pretty without drama or argument, and we really have nothing to argue about as we agree about most stuff, I'm home with the kids so we have no arguments there, no money problems, agree about religion and politics, none of the common issues that couples have. The first few months or so living together though were at least somewhat an adjustment. We had that one big fight. Then no more fights for like 10 years, and then one other fight. It really is pretty darn drama free. Of course a dual relationship involving an SLI might look different than a dual relationship involving an EIE. LOL.
But anyway, this is a dual relationship 10-15 years later. A dual relationship at the beginning is going to take a bit of work because any time you stop putting yourself and your individual needs first, it's an adjustment. Living together is another adjustment initially, because you have to come to agreement on a trillion little things. We didn't have trouble coming to agreement except for that one fight, but we did have to find agreement on stuff like what time to eat, who does the cooking (when we were both working), who does the laundry, how do you sort laundry - as you take it off or all at once on laundry day, bathroom cleaning, how to best load the dishwasher, not leaving clothes on the floor. I mean there are millions of these issues, most of them pretty small but each one involved a discussion and agreement. Our one fight was over priorities - if work and home conflict, who wins? The Delta answer is "home", however I was not raised by Deltas and I thought "work" is what anyone would choose.