[ Derek knew this was coming, but the question is still difficult to answer. Even if he'd had more preparation to explain what happened to Jackson, he probably wouldn't be able to come up with the right words to do it. Stiles used the word abomination, and it meant a lot to him at the time, but after knowing everything that Jackson's been through, calling him that now feels... cruel. ]

It's - hard to explain. Sometimes a person just... isn't made for a life like this.

[ He - hesitates, and he's not trying to give a half-assed answer here, he just really needs some time to think everything through. Derek slowly takes a stab in the dark. ]

When the bite works - you become a wolf. When it doesn't - your body either dies trying to reject the bite, or the shift turns into something else. Something corrupted. Dark.

[ Something reflective of who you are as a person. Someone bad. Tate isn't bad. Derek knows Tate isn't bad. ]

That wouldn't happen to you.