By Olivia Wheeler EastEnders fans will be in for a surprise as the BBC One soap is set to air two special episodes following Whitney Dean, played by Shona McGarty, during her time in Milton Keynes. Viewers will recall that Whitney was seen leaving Walford alongside her partner Zack Hudson back in January following their unexpected pregnancy and to visit Bianca in Milton Keynes after learning she had split from her partner Terry. Whitney and Zack decided they needed to visit Bianca after bosses confirmed Patsy Palmer would be making a brief return to the show to coincide with Whitney’s exit. Ho…