I can't speak to most, but in my experience, this has not happened. I've had several ruptures with my therapist. Some of them were harder to get past, and some were handled better on his end than others, but he's stuck it out. But I've also stuck it out. There were times when I wasn't so sure about going back, and I told him that, but I have a lot invested in this relationship and I didn't want to just give up on it. I feel bad for the clients of therapists who run away at the first sign of trouble.