I feel like Abaddon shouldn’t be shippable in my opinion. Characters don’t always have to focus on having a romantic relationship. I know jessaddon(?) exists and is cannon, I’m not saying it’s weird, but I don’t really care for it.
Just my take though.
Abaddon is literally the most unshippable character in the show, cus like, he's physically a child bcs the vessel, is a child, but he's like 1000+ years old (or trillions bcs he kept time-travelling)
It's better to like, not ship him with anyone, honestly