The creator of “Desperate Housewives” says he felt awkward and cautious around Nicollette Sheridan after a dispute in which the actress claims he struck her head. Marc Cherry told jurors in Sheridan’s wrongful termination civil trial that he watched his words around her and kept tabs on a human resources investigation of the incident through a key confidante. After Cherry was cleared by ABC executives, he informed series stars Eva Longoria and Felicity Huffman that Sheridan’s role would be cut. He told jurors that decision had been made in May, months before his spat with the actress.