Enemies~ M/R and Y/N

Mattheo Riddle and Y/n are enemies, the enemies of enemies. They never get along. Y/n(the eldest sibling) has 2 siblings, Pansy and Draco. Pansy and Y/n are in the Riddle manor with Bellatrix Lestrange and Narcissa Malfoy while Mattheo, Tom and Draco are in the Malfoy manor with Lucius Malfoy. Until something happens...