One, have never said a thing about “her stallion” as she does not have one. So there is that. And I’ve had a long time relationship with this person. So maybe you should double check your facts before being so demonstrative in your allegations about what I have said etc.
Two, at least you semi know this person and know it was a mare/foal next to mine. I definitely would have a chat though with this person you know so you can clarify your stuff.