By Olivia Wheeler Emmerdale fans are convinced they’ve rumbled Ruby Fox-Milligan’s downfall. Ruby, played by Beth Cordingly, made an explosive debut earlier this year as the estranged wife of Caleb Milligan. However, the fiery character has wasted no time in isolating herself from the village and making enemies. Earlier this year, Ruby exposed her on-off husband Caleb’s affair with Tracy Metcalfe in spectacular fashion. Since then, Ruby has made Tracy’s life a misery, even savagely ruining her dream nursery business and presentation. Elsewhere, Ruby has sparked concern with her controlling ant…