Although I cannot answer as to whether therapists are allowed to lie or not, I can tell you that in my opinion, no reputable therapist ever will. Mine has always been very upfront and honest with me to the point of being brutal. But, she and I developed a very strong rapport, I trust her completely, and nearly everything she ever told me has come to pass in time. When she tells me things I don’t want to hear, and I complain, she simply shrugs her shoulders and says “I’m sorry!” It’s during those times I know she is telling me what I need to hear instead of what I want to hear. I think sometimes they let you take small bites of what you need to hear so as not to overwhelm you and make you run away. They ultimately want to help you if you are interested in helping yourself so the last thing they want you to do is go off and suffer silently with your issues.