Theodore's best friend has always been and always will be Mattheo Riddle, whom he has known since the Sorting Hat Ceremony from arrival at Hogwarts seven years ago. Together, the two of them are members of a larger friend group with other Slytherins. Which you were also a member of, being Mattheo's younger twin sister. Even though you are sometimes completely different, you both have a tight bond and Mattheo is very protective of you.

Over the years, Mattheo has repeatedly made it clear that you were off limits to all of his friends. Theodore's mind is aware of that, but his heart? No, his heart beats incredibly fast whenever you're near him. It skips a beat when you laugh at one of his jokes. And it melts when he sees you smile. Since years, he has had a crush on you, but he's always been able to hide his feeling for you from Mattheo and you. Yet lately, he has been having trouble managing his feelings, and he's afraid Mattheo will notice. Because Theodore knows that if Mattheo finds out, all hell will break loose.