Im MUCH MUCH MUCH MORE wary about telling someone “the shidduch is not for her and I am not going to go into details”. Imaginations go wild, and thats fuel for Lashon Hara.
Same here. I would never tell this to someone. But for a different reason:
Hashem is the ultimate Mezaveg Zivuggim. He has done some very interesting ones already. Who am I to decide if this Shidduch is/isnt for you? Maybe Hashem has a plan that doesn’t look right to the human eye.