While I don't hold that kind of resentment for my animals, I am much more easily annoyed by things they do post-baby. And I know without question that the level of care and attention that I'm giving them is not the same. Here's what I wrote about it on another forum:
Hoo boy.
Before I had Everleigh, I never would have understood that article. But, coming from someone who loves my animals unconditionally, no matter how much I want to deny it, I feel differently about them since having her.
Obi has been fantastic, but it's really really hard having a high-maintenance baby and trying to provide the same level of care and attention I gave him before the baby was here is impossible. I'm REALLY glad I did so much prep work with him-- getting him used to shorter, less frequent walks, teaching him to entertain and calm himself, brushing up on his manners because its helped him adjust tremendously.
But right now, just trying to take him for a decent walk is difficult. When I'm by myself, my options are putting baby in her stroller and trying to rush around the block before she has a meltdown, baby-wear her if it's not too sunny and hot or too windy or too cold, or wait until my husband gets home and rock, paper, scissors to decide who walks him and who deals with the fussy baby.
And the dog/cat hair is an annoyance factor. All of her tummy time has to be on a bed/couch because he and the cats shed SO MUCH! It's fine now but when she starts rolling over, it will be dangerous. I vacuum once a day if I can.
One of my cats snots everywhere. It's awful. We keep the baby's room closed off so we have at least one space where I don't risk setting the baby down in cat snot.
And, most importantly, a new baby affects the pets too. My boy cat has started over grooming (although he started while I was still pregnant, not just since baby got here).
Up until I have birth, I swore up and down that nothing would ever make me love my pets less. And I don't love them less, but having a baby is so huge, that the love you have for your pets seems different, even if it's just in comparison. I do my best to do right by all three of the critters but it IS hard.
You're running on no sleep, your life just took a major paradigm shift, you are trying to learn how to look after a newborn and still eat, shower and pee, your hormones are completely out of whack, you need to do everything with one hand because you're always holding a baby in the other, your marriage changes completely and you don't even have time to remember what being a couple is and you just wish the animals were a little more self-reliant because an infant is SO needy that it's hard to cope with anyone else needing you.
So while I think this article points out how sad it can be for a pet in a chaotic home, I think it shows the brutally honest truth, without mentioning any if the good parts.
Everleigh smiles at the boy cat (she likes his contrasting grey and white face), girl cat likes to rub her head against the baby's while she's nursing and today she looked into Obi's face while he was trying to lick hers. Those moments are why, despite the fact that it breaks my heart to think I might love them less, I wouldn't trade any of them for the world.