So the thing about writing for the Pythageans is trying to tie in the various aspects of Numerology, which plays a distinct part of the spiritual side of their religions - and therefore, their lifestyle. Part of the fun of this is taking number names, or just numbers in general (as it’s considered good form for most to name your child this way and for the more spiritual, it’s considered good fortune as well), but what starts out fun becomes really studious very quickly, much like their nature. How their numbers match up is a serious social matter, as incompatible numbers rarely do find balance within each other. The Caridae are much simpler, priding themselves in their relations by simple acts of grace and investment. The Caridae believe their selves to be a sacred gift from God - this is best translated as the ‘Sacred Self’ - so it’s not uncommon for them to use nicknames or titles over their personal names. To reveal that self to another is a very personal thing, whereas with the Pythageans, it’s considered common courtesy. Often, Pythagean/Caridae relations begin very lax, as the stress is not on numbers but on the personal development between the two.
If we’re to examine such example, none better would be that of a Caridae who calls himself Captain and a Pythagean Vedas, politely giving his full name as Centi Dorotheus Ennillion. Say Centi and Captain have a very new relationship, and have just met. The title that Captain picks must be respected on a universal level, not simply by Centi. Captain is a good nickname to give himself - it’s got Master Number 11 in it, and the Master Numbers are an important part of Numerology. In the very least, it’ll strike up quite a conversation~!
But say these two want to pursue a romantic relationship. In which case, it’s more likely for their face value to be matched up before anything more intimate - any numerological match-ups at such a point will be based on Captains title, not on his name. This can make things complicated, but because it’s simply a placeholder for his Sacred Self, Captain can always change it to suit the number matching Centi better because of this. Even for the atheist Pythagean, poor match-ups are discomforting so the change actually shows a commitment to developing the relationship and active participation in it. Even with this good participatory sign, neither will go into this relationship with ideas of commitment - mostly because it is, again, grounded in title and not in Captains Sacred Self.
Now say Centi and Captain have had a developed relationship for a reliable number of years - then Captain can do the personal thing and divulge his Sacred Self to Centi. This begins another number-game, but with higher stakes, as the Sacred Self is a gift to the Caridae from God and must be kept. It’s part of your identity as a person (make note that names among the Caridae are not typically gendered/based on sex) and to share yourself so intimately is typically the sign of a very close and devoted relationship. A poor match-up is often a sign of distress for the Pythagean - a majority of break-ups among Pythagean-Caridae couples happen as a result of this, or are seen in retrospect as being influenced by the bad matching. It’s also a distress for the Caridae, as they’ve divulged their most private and personal part to someone that they’re less likely to have tat devoted relationship with.
However, if the match-up is good, it is considered a bond similar to marriage. The couple has met the two most important criteria for good grounding in a commitment. Mind you, these things are not necessarily required anymore than a marriage requires a ring or a relationship among humans requires a marriage. But they’re good signs and good fortune. Centi can rest easy knowing Captain trusts him with his name (showing off positive signs of his numbers) and Captain can share his Sacred Self with Centi, and the relationship can be taken more seriously. Good luck, Captain and Centi!