Surely, "Guest 17 Apr", you have missed the essential point of the first post, that it was X's "pre-emptive" strike that has caused all the problems, and heartache to Tiree and Y, If X had done what friends do, and not "told tales" then the situation would not have arisen in the first place, or at least not be of X's making.
The question concerned X's MOTIVES and INTENTIONS for action, and their view and definition of this long lasting "friendship". Surely X's actions in this context has (and would) make "Tiree" unlikely to conduct a reasonable conversation with X especially as it was X that started the "laundering of Dirty Linen" in the first place!!! and Tiree has not, significantly, , one surmises ,as yet "laundered X's Dirty Linen"