Of All the New Yorks in All the Worlds by Indrapramit Das

Of All the New Yorks in All the Worlds by Indrapramit Das (Tor.com, 19th October 2022) opens with the narrator, a multiple worlds traveller, meeting Aditi-0, the original iteration of his ex-girlfriend Aditi-1, who he met in New York City-5 while travelling across the timelines (NYCs 2-4 didn’t have an Aditi in them). We subsequently learn that he met Aditi-1 after he was tasked to take a message from Aditi-0 to the versions of herself on other Earths (her “altselves”).
The rest of the story is mostly an account of the time he spends with Aditi-0, during which they talk about his failed affair with Aditi-1 (which he is still moping about). The story ultimately (spoiler) subverts reader expectation by having the narrator and Aditi-1 become friends instead of lovers at the end of the story (or perhaps it just describes what happens when people break up but remain in touch). I am not sure what the point of this is.
The story essentially appears to be a piece about failed relationships even though it is decorated with SFnal furniture, e.g. the physical effects of timeline travel (nausea, etc.), futuristic jargon (“altselves,” “sticers”), and one scene that describes a trans-timeline node in operation:

Time appears to slow, and sound with it, flooding my ears with a low hum.
Everything. The people, the stars in the sky, the ruddy smear of sunlight still burning in the clouds behind Manhattan, the lights of New York City, the glowsticks now arcing through the air above us. Everything grows persistent trails that crawl across the dark blue evening air in shimmering banners and strings. Aditi0 is replicated a hundred times until she is surrounded in a glimmering tracery of herself. The entire world etches the expanding mark of its passage on to the surface of reality. We see the potentialities of past and present grow around us for what seems like infinity but is actually just a few moments. As this multi-hued, crystalline geometry of our movement and Earth’s movement through spacetime grows more and more complex it begins to ripple and fade like a wake, so the tearing meteoric lines of the city’s lights fracture into what looks like a thousand overlapping New Yorks and a thousand starscapes splayed out across the horizon, before vanishing into the singular skyline we know.
The dancing replications decorating reality stream away to nothing and time hits its normal pace again, letting sound rush in like an explosion. I stagger back at this effect, gasping as I take in the world, which now seems to be moving too fast. It takes a few seconds of staying still to keep from throwing up at the contrast. Aditi0 lets her shoulder sag against mine.

This is probably the only truly SFnal part of what is essentially a slow-moving mainstream story about relationships.1
** (Average). 6,350 words. Story link.

1. Contrast and compare this story with the decidedly SFnal Weep for Day (reviewed here).