romantic

As an adjective romantic

is romantic (pertaining to the romance era).

As a noun coupledom is

the world or sphere of romantic couples.

As an adjective romantic

is romantic (pertaining to the romance era).

As a noun yandere is

(chiefly|japanese fiction) a fictional character who fits the archetype of being genuinely romantic, loving, kind, merciful, sparing, sweet and gentle, but is at the same time brutal, psychotic or deranged in behavior the psychotic tendency can be both sudden and ever-present often used for both comedic and dramatic displays of character.

As adjectives the difference between romantic and smoochy

is that romantic is romantic (pertaining to the romance era) while smoochy is excessively romantic.

As adjectives the difference between romantic and romantical

is that romantic is of a work of literature, a writer etc.: being like or having the characteristics of a romance, or poetic tale of a mythic or quasi-historical time; fantastic while romantical is of or pertaining to a romantic tendency or character.

As a noun romantic

is a person with romantic character (a character like those of the knights in a mythic romance).