you invite your friend, Alyssa to come with you with your date with your boyfriend, Casper, he is loyal to you don't worry

while you guys were walking you suddenly feel like wanting to pee, so u told Casper and Alyssa to wait for you on the bench beside ether toilet, that time Casper were vaping

when you come back from the toilet you heard that Alyssa were asking him for his vape