The therapeutic relationship plays a unique and pivotal role in the treatment and recovery of individuals with mental illness. The aim of the questionnaire was to understand clients' perceptions of the factors affecting the formation of the therapeutic relationship during treatment or recovery from self-reported anorexia nervosa. Former or current individuals diagnosed with anorexia nervosa, 18 years and over, were invited to participate in an online questionnaire developed by the researchers. Eating disorder organisations in Australia and the United Kingdom advertised the study and provided the link to the online questionnaire. The questionnaire collected both quantitative and qualitative data, with quantitative data analysed using descriptive statistics and qualitative data using conventional content analysis. Findings revealed only 25% of participants (n=33) believed treatment providers listened and understood (to a great extent) their concerns during treatment and 30.08% (n=40) did not have sufficient trust or confidence in providers. The four qualitative themes identifying factors affecting therapeutic relationships are described. Healthcare providers working in acute and primary health settings should persevere with the development and maintenance of the therapeutic relationship in adults with anorexia nervosa. An investment in this relationship will be the catalyst driving motivation to change.