So you walked up and confronted someone you already didn't like about something that wasn't your business and you expected her to just smile and thank you for your concern and rave about how the knowledge you bestowed upon her has made her day?
Frankly this sounded like a live action horse version of Jerry Springer. After all the insults you threw at her, I'm surprised she didn't punch you in the face. Then you could punch her back for calling you a two faced ****? Then you two could key each others parent's cars, and slash tires perhaps? Maybe you could set her up so it looked like she stole money from the barn? And then later in life, steal her boyfriend and then rub it in her face?
Don't worry about getting in trouble, it's perfectly acceptable for YOU to act that way, you were just looking out for the horse's welfare.
I am totally missing how only the other person is wrong here. Honestly, you are the one who started the issue.
And for the record, though I do no think it is best or anything (I certainly do not do it with my horse) there are many many many horses who do jump every day and they have not died from it. Lesson horses who jump more than one lesson per day every day all over the place.
So you ranting at someone might hold more weight if you were actually totally accurate in what you are ranting about.