No a T should not react withr the emotion of a friend or family member - they are not either of those things and most don't pretend to be. Ts are human beings so they of course feel emotions, and maybe they show a hint of what they are feeling, but most will react professionally. Much like an EMT or a nurse in an emergency situation, they are trained to remain calm so you remain calm. A strong emotional reaction from my T or pdoc when I cut would not have been helpful for me at all. In fact that's the last thing Id want from anyone, especially a T. I'd want calm support and guidance, not an over reaction.