An update.

The dreaded chat finally happened today and went better than expected. Friend who talked me into this holiday was concerned I'd considered cancelling. He was in agreement with other friend who suggested just treating it as holiday I really need.

The couple haven't contacted him privately either for at least a month. He agreed when I said I was fed up with their dramas. His suggestion to let's see if anything else happens is sensible, hoping commonsense will prevail.