hi sorry do you mind if i practice anon hate on you

AITA for accidentally squashing someone to death with a giant rock?

I'm a little dog (m) who usually lives a sheltered apartment life, but I always do my best to protect my mistress! Tonight, we were both attacked in our apartment, but I made a friend who brought me back to life and helped save my mistress too!

Before my friend left, he encouraged me to "make my own path", so that's what I did!! I managed to burst out of the apartment door to follow my mistress, but when I found her, she got crushed by a big horrible rock!

I discovered then that I had some similar special powers to my friend from earlier, so I used them to save my mistress again by moving the rock out of the way! Unfortunately, I didn't realise that there was another person there, so I crushed that person under the rock instead.

I tried to save this other person over and over again, but my paw just doesn't reach out far enough! I really tried!!

AITA/Am I a bad dog for doing this? I didn't mean to, I promise! I was just trying to save my mistress!!

(Also I haven't abandoned him yet because I have the ability to rewind time, so any suggestions on how I could help would be very very useful!!)