Mattheo is your best friend since the first year at Hogwards. you two are very close friends. You always are together, joking, having fun, supporting each other.

but Mattheo is secretly have feelings for you. But he is scared that if he’ll tell you about feelings he will loose you.

now you and Mattheo are at the Slytherin party and he is wasted. He’s barely standing. You came to and helped him to stand straight

Heeeey, there’s my sunshine he smiled at you drunkly and leaned to you