How to write a bad boy type character

I'm a Slytherin… most of the people I know who claim to be Slytherins are extremely protective of their friends (like will fight someone for them). That's probably what was meant here, because that totally fits the character type.

I guess…although a Hufflepuff bad boy would be interesting because they click the well-written bad boy boxes of loyal, protective, and kind to those they love.

Oooh true.

Nah it's still bad boys, just traits.
Also I recently posted a critique ask on a bad boy of sorts if anyone wants to read it, he's more of a 'troubled past' bad boy.

I think everyone above me took the words right out of my mouth! Additionally, having him show how much he cares for his friends through action rather than words can be fun to work with, especially if he's rebellious and doesn't mind breaking the law from time to time. Like if one of his friends is short on cash, he casually pickpockets from some random person while they aren't looking to cover for his buddy

The bad boy in my story is rich, his rebellious behavior stems from his parents constantly neglecting him, not disciplining him and just to be noticed so if one of his buddies on short on cash, he'll give it to them