I totally agree with you. One of the best scenes that illustrated this, IMHO, was in "Raising Caine." During Horatio and Kyle's talk at the jail, Kyle asks Horatio if he is okay. The audience knows that Horatio is not, and it is very telling that Kyle realizes it as well. Suddenly the mask of H doesn't hide as well as it use to. I would be really disappointed if they killed Kyle. They are always killing off the characters relating to Horatio. It seems just cheesy to try to do it again. Besides, we love Kyle!