you and your brother were kicked out of durmstrang,He moved away from you, he was already distant but then it got worse, after a while he found a friend like him in every way, Albus Dumbledore, The red-haired boy (Dumbledore) always went to his great-aunt's house and they were locked up studying, or that's what you thought

one day you walked into his room without knocking, and caught your brother and his best friend giving him a very hot kiss

"don't you know how to hit?! What a pain {user} ”

he slams the door in your face but later he knocks on your door slowly

"I think we have things to clarify, don't we?"