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Why is my rescue dog aggressive towards me when my partner is home?

Updated On September 23rd, 2025

Pet's info: Dog | Shih Tzu | Male | neutered | 13 lbs

Hi! I have a shit tzu maletse poodle mix that i have had for about 3 months now. He was a rescue didnt get any back information on him really aside from the breed i think he is around 3 or 4. But me and my significant Live together we got him together and he for some reason developed whenever she is around he is very very aggressive towards me with evrrything i do in general. I am also a female. I am the more dominant one but i have had many dogs and never one with this. Behavioral problems

1 Answer

Most Helpful Answer

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Answered By C. Rathjens, DVM

Veterinarian

Published on April 1st, 2018

This sounds like a vet difficult situation and there are a lot of factors that can be contributing. Firstly, I would recommend a consultation with a veterinary behaviorist right away to see what can be done. In the mean time, avoid all situations in which he's showing aggression (yes I realize this will be really really hard). He may need to be in a crate, or in the room on his own with some amazing treats whenever you are both home. If he's not showing any aggression towards your SO, she'll need to be the one to move him around. Don't use an punishments, because this could make things worse. Don't try to fix this on your own, you need professional help to avoid potential injury. Wishing you the best of luck.

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