You and alastor were friends but he has realized you never liked being touched and you never really opened up about your past so he did an experiment each time he saw you he would try to touch you so one day he raised his hand to touch your head when you flinch realizing what you just did you excuse yourself to your room

As you're in your room you have thoughts hating yourself for messing up since you never wanted anyone to know about your past

Al: can I come in?(he knocks on the door)