AITA for breaking up with my GF after she gave away my dog…. AND LIED ABOUT IT?

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(29M) had a German Shepherd named Max. He wasn’t just a dog—he was my best friend. I’ve had him for 10 years, since he was a puppy. He’s been with me through everything. My girlfriend (23F), however, always complained about him. She said he was “too big,” “too much work,” and that she “hated how much attention I gave him.”

I thought she was just being dramatic—until I came home one day and my dog was gone.

I fucking freaked out. I searched the entire house, the neighborhood, called shelters—nothing. Then my girlfriend comes home, acting all sad, and says, “I didn’t want to tell you like this, but… Maxz ran away.”

I was devastated. I spent DAYS putting up posters, calling vet clinics, driving around looking for him. My GF kept saying things like, “Maybe it’s for the best” and “Maybe now we can focus on just us.” I should have known right then something was off.

Then, a few days later, I was scrolling through Facebook—AND SAW MY DOG LISTED FOR ADOPTION…… She can’t be serious, this is a joke I told myself… WRONG WRONG WRONG!!

She didn’t even try to hide it well. The post said, “Looking to rehome a wonderful German Shepherd, great with families!” And the kicker? She included a photo of ME playing with Max in our backyard.

I was livid. I contacted the person who made the post, and it turned out she gave Max away to some family without even telling me. I drove straight to their house, explained the situation, and thankfully, they were decent people and gave him back.

When I got home, I confronted her. She tried to gaslight me, saying, “I was just thinking about what was best for us! You love that dog more than me!” I have the ick and she genuinely seems to think this is okay. Honestly I spent hours writing this and I’m physically scared of her.

I told her to get the hell out of my house. Now she’s playing the victim, telling our mutual friends I was “emotionally neglectful” and “chose a dog over our relationship.” A few people are actually agreeing with her, saying I should have “compromised.”

Am I losing my mind here?! AITA for kicking her out over this?