Best friend to lovers this, rivals to lovers that, enemies to lover there. You know what's superior? Annoyance to lovers. Two characters that care for each others but in certain ways that annoy them at the same time. Not quite best friend, but not quite rivals or enemies either.
Bonus if they use the ever-famous 'significant annoyance' label.
Extra bonus if they're married and still annoy each other (lovingly).














