<human>: I moved into a room in a family's house for 6 months while I work an internship. All is going relatively well except the dog hates me! Personally this is hard for me to handle because I LOVE dogs, and consider myself fairly experienced with them (owned dogs in the past, volunteer at my humane society, etc). It has me at a loss of what to do!

So this dog is a medium sized "mutt" about the size of a small Labrador retriever. She is about 13 years old but is still active and healthy seeming. 

Anytime her family is around she is okay, but if I'm ever in the room alone with her she snarls and bares her teeth at me. I make no attempts to touch her or make eye contact. I'm nowhere near her food dish, I'm simply in the house. She's probably just protecting her "territory", but I've been here a few weeks and she still does this anytime we're alone. I've never been afraid of a dog before but I'm a little concerned she might snap at me one day.

I'm hesitant to bring this up to my landlord because the dog is nothing but loving and sweet around them, and I don't want them to think I'm tormenting their dog when they're not around or something. I need advice!!

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<bot>: 13yo dog is sweet with family, but snarls and bares her teeth at me when they're not in the room. help!!