S4 E106 | Unlock: The Best Way to Find Out; Truth: Secrets Revealed After Mom's Death

Crystal learned that her boyfriend, Kelon, cheated during their first year together, and though she took him back, she's now questioning whether that was a mistake; London and Joshua grew up believing they were siblings but have recently discovered that they may not be related at all, and after everything they've been through together, the possibility of not being sister and brother is heartbreaking.