I believe it is more likely that the young male lover/war companion, protege of an older warrior was buried with his mentor. This relationship was common among the Greeks of that era. It was particularly strong among the Spartans. See the section on Life in Ancient Sparta and Role of Women where the unusual aspects of sexual and marriage customs are quite different from other Greek cities and seem to me to resemble some of what has been suggested about the steppe cultures of that period.
https://en.wikipedia.org/wiki/Sparta
Other aspects that hint of possible connection to the steppe cultures of that age is the fact that Spartan girls were feed as well as the men, and permitted/encourage to engage in sports and physical activity. Also they were not forced into early marriage and childbearing as bearing healthy children was a major concern. There were a number of unusually rational aspects to the sexual habits and liaisons of Spartans.
Sparta's founding royal houses made a, uh, unlikely claim of being descended from Hercules, but regardless of the veracity of that, the Mycenaean Sparta of the Homeric cycle was destroyed by invaders (the excavation of the royal palace of that era has been going on for a few years now); other Mycenaean-era cities, as well as the giant levee at Gla, met a similar end. Interesting take on that, since the likely destroyers (under the revised chronology, rather than the conventional pseudochronology) would be the Scythians, or less possibly one of the other parties who destroyed Nineveh.
Does Celtic art have links with Asia?
Posted on October 15, 2015
http://www.pasthorizonspr.com/index.php/archives/10/2015/does-celtic-art-have-links-with-asia