SSOnixFox
Some stories follow a corresponding path. Whether it's boy meets girl, girl meets boy, boy meets boy, girl meets girl, the path is the same. Either something tragic happens to the mc, they go somewhere else, change of scenery, they meet someone who gets on their nerves. The pair struggles until they rise victoriously. Or, they die.
Most romance novels are retellings of Romeo and Juliet. Exemptions exist, but they are highly uncommon.