Therapy or Intimacy?

In the past when I’ve proposed convening a “soul session” to “speak from the heart” or a “support group” to report on efforts at self-improvement, some people have declined to participate, saying “That sounds like therapy.” Those comments prompt me to wonder, “What is the difference between therapy and intimacy?” Myself, I like to tell my close friends what I tell my therapist, and I like my friends to respond the way my therapist responds.