I'm just gonna go around this batshit polycule clockwise.

Nepeta is mutually redrom with both Feferi and Terezi. I just think they're fun. She and Aradia are probably not dating in a formal sense but like, they have fun flirting.

Kanaya and Aradia have a blackrom thing going on which I have gone into in previous posts so I won't belabor the point here. She's also got her one-sided red crush on Vriska which I imagine vacillates black on occasion. I also like the idea of her flirting red with Terezi a little. I think Terezi's a little too loud and a little too entangled with Vriska to maintain Kanaya's interest full time, but yknow. Girls be flirting.

Terezi and Aradia are so fun. I don't think they work out as a longterm thing in either of these quadrants but due to aforementioned Vriska entanglements and the type of stuff that reveals in both of their personalities, I DO think they harbor some red/pale crushes for each other on and off.

I think the most longterm thing for them is probably a lot of Terezi auspisticizing Aradia and Vriska. Vriska, I imagine, has a very intense and very one-sided blackrom crush on Aradia. Aradia really just wishes Vriska would interact with her as little as possible. This being Vriska's actual kryptonite, prompts Vriska to sink to ever lower depths to get Aradia to reciprocate her hatred, and pushes Aradia to consider Really Actually Killing Vriska ever more seriously. Terezi intervenes for everyone's safety because she's the most qualified to do so.

She still has All Of That Other Shit going on with Vriska though which complicates things. It is a multiquadrant mess and I think if andrew hussie proved anything it's that any attempt to extrapolate on what's going on there will result in an 8000+ page webcomic At Minimum. i dont have time for that though. anyway y'all know the deal here.