Feeling betrayed by vet

Know it's not Ttc related but I have no where else and we do post about our fur babies.

I'm having to rehome my golden he went after two dogs not biting but snapping, has anxiety, and we are moving/downsizing due to military and my fiancé got tested and found out allergies he has are from pet dander.

I worked with my vet to see how to help dog with anxiety and she suggested lavender vitamins and training. I attempted all this however on vet record she wrote that he "had severe aggression and anxiety" and had "attempted to bite them" *the techs didn't realize he was a nervous dog and approached him to aggressively to take his temperature.

Now after trying to rehome him with a rescue they got vet paperwork that stated these exaggerated things and are refusing to take him. Now my only options are finding a shelter that will take him with this exaggerated vet history 🙄 or put him down 😭 meanwhile my vet was just acting like his behavior was no big deal

I just feel betrayed and like I was trying to do things right by the dog I love by asking vet for help and instead they told me no big deal options while recording severe/dangerous in their reports. Just feel lied to and out of options I don't know what to do 😭