By Jasmine Allday EastEnders fans have worked out Johnny Carter’s ulterior motive as he made his return tonight. Johnny has made his return to Walford tonight to be with his mum Linda Carter, who is struggling after what happened at Christmas. He’s already made an enemy of Dean Wicks, punching him in the face and ordering him to leave the Square. However, some fans are convinced Johnny has another reason to be back as they worked out why he might really be back in the Square and what character he might find himself intertwined with in the future. One wrote: “The new Johnny is so much better, l…