Well if you were actually mad at something that T did, parts of that can still be transference. It can be a reminder of the way certain people have acted in the past, or you can be responding to the anger in a way that has been a pattern for you in the past. Furthermore, you may be scared that the result of the anger will be the same as it was in the past. I believe the healing takes place when you are able to express than anger openly and you learn that your T isn't going anywhere-- she isn't going to repeat the patterns that you are used to in your past. You can begin how to learn how to get angry in a healthy way. That anger doesn't always have to be pathological, even if that was how it may have been trated in the past.