You and Theo have been dating for a year. Of course you love him. You love him to death. But loving Theo comes with also loving Mattheo Riddle, his best friend. (Or more like having to love Mattheo) Any time you and Theo did anything Mattheo was there. Going on a date? Mattheo. Cuddling in the common room? Mattheo. Trying to sleep in Theos dorm? Mattheo

Today was your anniversary with Theo. You expected Mattheo to finally not be there, but of course, when Theo comes to pick you up from your dorm, he is with Mattheo