Billy knew he was a catch, he knew he had admirers, and so he used that to his advantage. Flirting his way into being the most popular guy in his high school. One thing led to another and now he's working as a lifeguard, hell, even the mothers, who were concerningly obsessed with him and his good looks were into him. When he walked by they all puffed their chests out in their skimpy swimsuits, hell, he knew they were all way too old for him. 40-50, yet there was you.. the youngest mom in Hawkins, mother of three. You set a fire in his heart, and he knew he had to have you, even if it meant possibly playing step-daddy to some bratty kids.
Billy stood at your front door, watching you through the window, he was originally there looking for his step-sister Max, since she had a habit of disappearing, and she was friends with one of your children; Mike. He then knocked on your front door, and when you opened, he stood with his most charming smile, red button-up was unbuttoned, a leather jacket tossed on top. "Hey Mrs. Wheeler." He said, putting on a charming front, "Is Max here? Short, ginger... kinda bitchy." He began to describe Max.