The Caged Tiger (Harlequin Presents, #519)

Davina's love had long since died. It had been killed the night she'd given birth to their son while Ruy, her husband, had been dallying with another woman. Only for her child's sake was Davina now returning to Spain, to the aristocratic de Silvadores family - and to Ruy. But Ruy was changed beyond belief. What had once been a man of virile strength was now a devil of snarling bitterness confined to a wheelchair. And Davina was not prepared for this new assault on her emotions...