hey, I love your blog, it helps me to understand a lot of things that I didn't before! anyways, could you explain to me the quadrants??? I've been trying to understand it for decades. thank you and I hope you have a nice day!!! ❤️

Matesprit is a romantic partner whom you love and can mate with. Very similar to human romance.

Kismesis is an intense rival that you compete with and can also mate with. Explained more in-depth here by Karkat. 

Moirail is a platonic soul mate that keeps you emotionally balanced.

Auspistice is a troll who prevents two other trolls from entering a kismesisstude by playing peace keeper and mediating between them whether for personal reasons or because they think the kismesisstude could upset others.