My “horse of a lifetime” (who has been with me since I bought him off the backside as a five-year-old - he’s now 22) is not what you would call a natural in dressage. I came from an H/J background where I coached the “A’s” so that wasn’t helping anyone.
My utterly amazing and wildly talented dressage coach and I spent more than a year working with him before he and I could pull off a left lead canter in the dressage ring. I had an eventing coach who was top flight, but for dressage, I always rode with my dressage instructor.
It was constant work to get him moving in a balanced and forward frame. His preferred way of going was in the typical OTTB style of a pogo stick - up/down/up/down. After being with my coach for almost two years, I broke down crying during a lesson. Watching a young student on a super green OTTB (with 10/10 movement) quickly accomplish things I couldn’t with more than 18 months of training was a breaking point.
My trainer’s response to this breakdown? She essentially said that my horse wasn’t suitable for what I wanted to do because he’d never be a solid dressage horse. Then she pretty much told me if I wanted to be successful as an eventer I would need to sell him. Those words cut like a knife. I honestly liked, respected, and trusted this woman. However, I knew this was THE horse, and I was not going to get rid of him. I stopped riding with her after that although we maintained a friendship.
Fast forward six months later to our first HT (USEA recognized in Area IV) where he finishes 6th out of over 20 entries, and I am crying again - this time with joy. He went on to compete with me all over the US in recognized events, and I’ve got a wall full of ribbons and photos to show what an “unsuitable” horse he was for the job. He even won on his dressage score a few times (28 was his best)!
My event coach stepped in and was a fantastic guide, mentor, and friend who believed that my horse and I were perfect for each other. She conceded that he was a hard horse to ride and that not many people could or would want to ride him, but that he was ideal for me and she was right.
Sorry for the long story, but I wanted to say if you have a trainer who says something like what mine said to you - then you must evaluate the relationship. I have been an instructor and trainer for more than 30 years, and I NEVER tell my clients I do not like their horses (and boy have I disliked many). As long as the horse is safe, sound and the rider is happy why would it ever be my place to judge?
Just my .02.