Where was HIS "second witness" to what YOU were doing? Problem is you confessed. There were two of you seeing him...who else saw YOU?
Do this before you get DAd or they wont listen to you at all. Why listen to a DAd person? They only want the things of the WORLD you know...and all of a sudden this MS who narced will look like the one with the conscience and the goodie goodie. He wont be touched. Perhaps a private reproval and not being able to handle any MICS for a month ...but thats it.
Id just kick his as personally. Forget the tongue lashing. Its meaningless.