but Kevin got that way overnight, whereas with Bill, it was a gradual process, so there's a bit ore shock regarding Kevin.

For his part, Kevin helps Carden avoid the worst of the repercussions (he's soulbonded to one of the school's most famous students, no way he's getting expelled now!) and goes to make friends with Bill

which is actually rather easy once Bill deems him worthy of Carden's affections.