Questionable or hyper senstive?

Tell me if I'm over thinking this.

I'm fostering a previously abused dog with old injuries. She's missing a quarter of her face but is otherwise is a happy dog. I was walking her and the neighbor kid asks what happened, I said something like "well some people are bad and are mean to animals". The kid looks like he's 7. His mom moves him away and says "That wasn't necessary". I thought maybe she misheard me and forgot about it. Then later she came to my door and is upset that I told her son people hurt animals are bad people. Yeah I was pretty shocked by her reaction to what should be common sense, people who hurt animals ARE bad people. Hello? Earth to neighbor? I said yes, I stand by that and she pops off about how I don't get to tell someone else's kid what's right and wrong before I tell her to leave and she stomps off.

Now I'm trying to figure out of this woman is ok with animal abuse or maybe (hopfully) she's just sensitive. I think they have pets and honestly I'm worried about them. Like what a crazy thing to get pissed about.

She looks like a healthy 45 year old woman but she could be on something or have altered mantal status. Who knows.