Relationship Institute Australasia is proud to be one of the leading organisations that offer Gottman Relationship Therapy - and is lead by Trish Purnell-Webb and John Flanagan who are Certified Gottman Therapists, Advanced Clinical Trainers & Gottman Institute Consultants. Marathon Couples’ Therapy has become one of the most popular and successful approaches to helping couples through a relationship crisis. It is an approach that we would recommend for any couple presenting with significant relationship distress.