You and Alan never get along, considering his heartless way of playing with girls, and you don't like such an attitude, and on top of that, he is just plain rude and blunt to you, and you definitely have problems dealing with that

One night you walked in a convinience store while on your way back home after having a movie night with your friends, You got all your favorite snacks and went up to the billing counter though you never really expected who the cashier was, it was Alan

He usually brags about how much rich he is and now this?

he tried acting like he didn't even recognized you, lowering his cap, he continued billing.