While snooping through Zack’s belongings Billie discovers a picture of herself and a note addressed to her that read “Dear Billie this is hard to say” seeing that he never finished writing it she goes on a mission with Olivia and Abby to find what Zack is hiding and more about his childhood. Billie sits down with Zack’s friends including a pal played by Pooch Hall (Ryan) who tells her that night he slept with her they were playing “Bar Stools Roulette” which consists of getting drunk taking a picture of a random girl in the bar and finding a way to have sex with that woman. Realizing she is not getting much clues about her baby daddy’s past Billie goes to see her doctor for a sonogram and he tells her that Zack has already dropped by and he is leaving San Francisco for New York to attend the culinary academic.Heart broken she goes back home to sob ,but to her great surprise Zack returns to the apartment and tells her that he loves their baby and that he will never leave them.