Appeal from an order terminating both respondents' parental rights; termination of respondent-father's parental rights pursuant to N.C.G.S. 7B-1111(a)(9), parental rights with respect to another child had been terminated involuntarily and parent lacked the ability or willingness to establish a safe home; whether the trial court abused its discretion in determining that termination of respondent-mother's parental rights was in the child's best interests.