Sonata loaded right in and we put her behind my friends mare(they are pals) and left the window open so she could stick her nose out. We went and dropped my friends mare off at the barn she manages and Sonata got to play with some other horses then she went right back in. I thought she would flip out being trailered alone and scream all the way home but NO.....she seemed perfectly fine.
I feel SUCH relief lol

.....Celebration over hehe.