I feel terrible for his wife and wouldn't fault her for any decisions or actions while she may be emotionally stunned, but if I were the wife here, with my wits about me, I would say to him "Even if I haven't made up my mind about staying with you (and maybe I have), you're not using my face at your press conference. You get out of this yourself, buster – don't use me." It makes me think less of him for using her at such at a time.