If the breeder was rude like that and implied you caused it, that would be a red flag to me that he sold you a sick or less than stellar animal. Every breeder i;ve bought from have wanted to see pics of the snake after a few months to see how its doing. Stuff happens. Do like mentioned and clean everything with a bleach water combo and personally, i would just throw any porous stuff out and probably would toss the water bowl too but thats just me. I'm kind of OCD about cleaning for my snakes haha.