Hi, Brow! Whoo-hoo, you can practically smell the wood burning.
So let's be fair and positivist and suggest that if there is in fact a rather predictable script -- a Divorce Ring Cycle, if you will (does that make me Siegfried to STBX's Brünnhilde?) -- this might compel us to recognize that perhaps there aren't so many variations of human relations.
Way back when, at the start of SP's own cycle, I met a diplomat from Very Catholic Central European country at a cocktail party. Before he joined his country's foreign service, he was a divorce attorney and wouldn't you know it -- Walkaways in Very Catholic Central European Country have the Exact Same Script as Walkaways in These Yere You-knighted States of Amurca.
So if (YouTube) People are People, then there are, by definition, patterns. And patterns are, by definition, explicable.
So it doesn't have to "just be their perspective" -- there could be / must be / might be some recurring social / emotional / psychological phenomena at work.
And that implies there could be such a study.
Whether or not that would change things is, of course, purely speculative. For mine own sake, I doubt it would -- the defining characteristic of Homo Ingredior Absentis is Rationalization.