Am I right or wrong?

So before getting married my husband had a dog. When we started dating, he and I both cared for the dog equally because I see the dog as my dog and of course i’m going to take care of it. This dog was never trained to do anything whereas my dogs are fully trained. Last night the dog was ripping up the sofa so i scolded the dog and my husband got mad and told me to not scold HIS dog and that if there’s something wrong, he will do all of it. I told him that he should be proactive so it doesn’t need to get to that point then and I just let it go.

To me, I feel like if you want me to pitch in with your dog, I’m going to treat and train the dog the same way I would with any of my dogs. He left for work this morning without feeding the dog (my dogs are at my ex’s house cus we split custody like they are kids lol) and I felt like he should’ve fed the dog because I no longer hold responsibilities for said dog. (I of course fed the dog regardless because i’m not a terrible human) Am I wrong for viewing it like this? Like if you don’t want me to do any behavioral stuff why would I do any of the care taking stuff as well?

This isn’t like a means or ground for divorce and we aren’t actively fighting but it just had me thinking.