Ok, so believe it or not, back in 2022 I had a MASSIVE brainrot about this; I actually had the general plot laid out-- (note that a lot of things have to go differently for the AU to happen) But I can't spoil too much because detailing the plot of this AU will inevitably spoil how I would rewrite the original story.

There is, however, an elephant in the room that I must address

and that is how I personally write startouch elves' aging.

I think part of the hook of Aaravos is how mysterious everything about him and his species is, so trying to explain or make sense of it partly ruin what's so appealing about him. I will say this: Since the way I write him and his species are based on actual physics and cosmological study of real stars, I made this little chart to illustrate how obscure it is to even think about the concept of a teenage startouch elf, just...just to make my life easier:

Based on this, when you ask would their interaction be any different? Yes and no? I think the key takeaway here is probably how differently they are allowed to interact with mortal species?? And idk if you noticed but according to this wacky chart Aaravos is probably still considered an INFANT in the eyes of the universe...

I guess a simple answer would just be because Aaravos looked younger (despite it's impossible for finite species like us to distinguish between a 3000-year-old man and a 5000-year-old man) I think the only difference is that he gets to act a certain way when he looked like a teenager that his fully adult counterpart cannot towards other mortal species???

Amongst other things -- but I think everyone can probably guess what their relationship is like in this AU

There are definitely more complicated and thoughtful plot points that I'm not flat out saying because time and sanity and with enough protest from you guys maybe I will release a first chapter no promises but I will present you with the very first thing that Callum ever said to Aaravos in the teenage AU: