♥: How they show affection.
Velius shows affection like any normal person would but he's got a twist on some things that are done. Depending on how much he likes someone, he will nuzzles against them and sniff at them like a dog would and if he happens to have a lover, he'd bring them spoils from any job he's taken or just little trinkets he happens to steal. Though if he really really liked them, or in other words held them in his interest, he'd perhaps find a way to make it known they are his and his alone. Don't underestimate anything he will do.
✖: A trait they despise in people.
There aren't exactly any traits that he hates in a person but he really dislikes people who come off as nervous/anxious all the time. He finds it rather annoying, though he knows it can't be helped but he just doesn't like it at all. Which means he finds himself obligated to frighten those kind of people.
ツ: A guilty desire of theirs.
He really wants a target of his to fight back and nearly have him on his death bed rather than just making quick kills like he always has. He wants to have a real fight with someone, one that means life or death, where he's covered in his own blood. He wants to laugh and smile at that kind of pain because he's felt it once before and liked it and hasn't yet felt it since. He needs it, wants it more than anything.