Severus was outside cuz he doesn't like party's and you were also outside cuz you dont like loud music so um OH and he hates you make him like you by the end of the night oh and your a girl (srry boys)

he was in the bar and saw you a student of his and then saw a guy put something in your drink and give it to you and he didn't like that so he toke ot to his own hands

you got AS not so long ago and sometimes still do but now your in a weizrd school and for some reason your roommate is Severus a teacher and he saw a guy put something in tour drink and he taught him a lesson but you ran out of the bar but snape ran ofter you and caught you and you tried to get away but he didn't let you and yelled at you