My T an I had a rupture that was based on something she had done. At firstI just cried and was not able to explain why what she had done affected me so badly. In the next session I took a letter in and read it out. She was so very grateful I had taken time to do this and said it helped her understand. She also apologised for what had happened previously.
It was a fantastic session because reading something out was so much easier than just saying it somehow. I say go for it.