So, obviously, Hufflepuff!Benvolio spends a shit ton of time in Gryffindor Tower since that’s where Romeo and Mercutio are.
And, of course, Gryffindor!Rosaline is totally sick of it.
So when she becomes prefect, she bans anyone from sharing the password with Benvolio.
Benvolio, also prefect, retaliates in the best way he knows how: he bans Rosaline from the Hufflepuff dorms (and therefore, from seeing a certain cousin of hers, and maybe perhaps a girlfriend - and no, he did not get the idea from the Slytherin prefects Escalus and Isabella what are you talking about) and Ravenclaw ones - where Livia is.
Rosaline retaliates by embarrassing him in potions class and earning more points for her house than him.
Benvolio retaliates by betting her that Hufflepuff will beat Gryffindor in Quidditch (they do) and using that spending money to buy the Gryffindor password off some random 1st year.
Rosaline retaliates by luring him into the Room of Requirement and locking him in overnight
- and, well, you get the point. (there’s a lot of howlers sent back and forth)
Until finally, in their 7th year, they’re both named Head Boy and Head Girl and keep running into each other and they’re in all the same classes damn it - and all their friends are sick of this so they all (well, Stella and Isabella really) basically force them on a blind date
which ends with Benvolio jumping into the Great Lake
and Rosaline jumping in after him
(neither of them with clothes)
(they’re both late to Charms the next morning looking PARTICULARLY DISHEVELED)













