Sebbvloxx being entirely one sided is incredibly tasty but can I bring an idea to the table to be a little evil: Vloxx being a little attached and loathing himself for seeing something in an unrepentant monster. I love the 'known each other a long time within the inquest' headcanon and I think it makes the most sense this way.
Both in the sense that like, Sebb is such a 'devil you know' kind of person. He is intensely honest in what he is, there is no real mystery to his flavour of evil. Sebb is volatile but predictable. Vloxx could at the time of any promotion find a different room-mate or whatever, but why risk it? He's broken this one in.
But also, Sebb's very hands on, I get the impression if he thinks he's the best person for a job he should be the one to do it. Like it or not, they share that. I actually think based on what we know he's very supportive of Vloxx's 'no one else will do it so I will' philosophy, even if they take it in vastly different directions. There's something nice in being seen even just briefly, even by the last person you'd ever want relating to you. It's an interesting conflict. Especially how much it all sours once the Commander is on the playing field because oh finally the person Vloxx actually admires and wants to understand him is here, who cares about anyone else.
Golden opportunity to throw it all away and pretend none of it ever mattered.
