Since leaving London Wesley hadn't been too present in his mind to recognise that Mandy had changed her mind. In fact he hadn't much noticed that she'd not even mentioned anything to do with the baby, keeping it or getting rid of it. His mind was filled with Roger. Despite being grateful for the last days with him he was still angry too. He was being dragged through the same shit he had been getting over to be faced with a gut-wrenching decision he shouldn't have been made to make.
When Mandy came in he didn't see her, focused on filling in the O shapes on the forms. After a second he realised he was needing to be Daddy and he opened his arms, accepting Mandy into a cuddle as he held her close. They both needed this.