Horse attachment issue

[Velvet turner]

My horse always seems to attach herself to one horse on the yard and go mental and jump out of her stable when her chosen horse leaves. She did it at the old yard with one and now we have moved she has already found a few horse to attach to and jumped out of her stable when the horse went in the school. There were other horses in their stables, the school is right in front of the stables so she could see the horse in the school, I am not sure how to go about sorting this?

I have a grill I’m going to put up so she can put her head out but hopefully not jump out. She is not turned out with this horse and not next door to it in the stable either!

 

[Korg]

I find that kind of horse to often be better at large yards with many other horses and movement. How many horses are in the yards you've been at?

 

[Barklands]

Echo above, a big yard where they can see lots of different horses coming in and out at different times usually stops the attachment. Also if you can, don't have her in a stable anywhere near her field buddies

 

[Velvet turner]

I bred her, both yards have had 4 horses Including her. I’m keen to work on the issue and get her better at it over time, no urgent rush, I would take her to a large yard if The only option but wind rather avoid it!

Does anyone have any ideas on how to improve the issue