Puzzle answers:
VERNON DURSLEY BARRY ALLEN JACK DAWSON DOMINIC SOREL ECHO CONNOR MACLEOD WINTHROP PAROO
Each of these answers is the name of a character who has a love interest, spouse, or other object of affection with the same name as a flower:
VERNON DURSLEY --> Petunia BARRY ALLEN --> Iris JACK DAWSON --> Rose DOMINIC SOREL --> Anemone ECHO --> Narcissus CONNOR MACLEOD --> Heather WINTHROP PAROO --> Amaryllis
The initials of the flowers spell out PIRANHA, the meta answer.