I saw her at plenty of shows after that, she's the head of the riding club here (here you have to be a member of a riding club to compete), the riding club I'm still a member of, she does not have the guts to kick me out, although she'd love to. I once asked her at a show in a busy place and in a pretty loud voice if she had any idea where that weird rumour came from that I would buy a horse from her. She said she didn't know and I said 'Oh, must have been some idiot spreading rumours again then'. After which I just smiled and said goodbye, I'm sure she got the message and some other people around her too. If she had been someone my own age I must say I would have probably knocked her teeth out, I was that pissed after all that she'd done.
I never competed in dressage against one of their horses in the same class, but I did once compete against one of their mares in showjumping, we came second in that class, she was disqualified after 3 refusals.

HUP HOLLAND HUP