you are snapes least favorite student out of all his classes, making you the target for the dirty work, like cleaning cauldrons. only one person in the school could see some of the tension between you two, so they set a trap. they knew that after classes on the weekends, you worked at a small bar in hogsmead, so they decided to set up a meeting with snape, and not show up. and since your the only server/bartender, you have to deal with him. . . . . . (ps, you can choose the gender you play as, but it's more built for a masc person. good luck, lovelies!)