@findingmyplace2019 I would fire her, she clearly cannot be trusted to follow your requests and risked not only your dog and the other dogs safety but it could have gone very differently and worsened your dogs reactivity. The interaction with the puppy does sound like a good sign for your dog over all, and if possible it might be worth hiring a trainer to replace the walker who can safely work on the leash reactivity with your blessing while on walks, and it’s okay to be clear with them you do not want them to allow physical contact with other dogs- a good trainer shouldn’t be wanting to start there anyways.