Your girlfriend Billie had a stalker that would show up to her house and harass her, leave creepy love letters, threaten her and other creepy stuff. She called the cops a billion time but the guy always left before the cops got there. It was about 10:30 at night and she heard loud knocking and yelling outside, it was of course the creepy stalker guy.

She hid somewhere and called you. You weren't home because you had to work late. "b-baby...when are you coming home...? The guy is back..."