#classic stalker whumper keeps whumpee in basement vibes

[corpwhump]

How about The Horror of Our Love by Ludo?

Stalker whumper who's been watching whumpee for years, and who maybe interacts with whumpee daily completely normally, only to go home and fantasize about what whumpee would look like under a knife, back flush against their chest.

Whumper who is too deep in love with whumpee to be rational anymore. Whumper who is convinced that whumpee loves them too: all that's left is to make them theirs, permanently

Whumper finally deciding to bite the bullet and give in to the delusion, and who completely ignores the protests in favor of shushing them with declarations of love.