The Flash said:
The classical Hollywood narrative is thus:
Film begins with hero/heroine's life as normal.
Something bad happens.
Hero/Heroine spends rest of the film trying to re-establish normality.
Hero/Heroine mostly succeed, but sometimes the 'twist' is that they fail.
The End.
In rom coms:
Boy, girl meet.
Boy, girl like each other
Something happens an they hate each other.
They spend some time feeling shit about being apart.
Something happens and they fall in love.
Some sex scenes in the middle of it if you are lucky.