@yuliia After my baby was born, I had issues feeding her. Long story, still bitter, but for the first 5 days I was fine. Just hunky dory. And then everything went crashing down and I couldn't stop crying. I was so frustrated. I felt like a failure. Like I was doing everything wrong. I know fed is best, but it was working and then it wasn't.
Post-partum hormones are an absolute bitch. Once something goes wrong and those negative feeling switch on, it is hard to turn them off. Mine was a minor hiccup. If your wife is feeling this way (with a difficult baby no less) it can super mess with everything. She needs to see her doctor. She might need some meds to help her through this. Sometimes a little medication can go a
long way. I don't even wanna think about what I would have gone through if I hadn't already been on Zoloft. (Throughout the pregnancy and afterward).
Tell her that her feelings are valid. It's okay to feel nothing for the baby at first. It is okay. She can feel nothing for it for 6+ months, and it's okay. It's hard, sometimes, to love something that is nothing but a drain on your mental health.
It will get better. It gets better. Eventually, baby starts sleeping more, smiling, pooping less. They know you. They love you. Also, you take care of you, too. Men's mental health post-partum is under researched because of the normal explosion that happens to women. Men need help too.
Also, look up Purple Crying if you haven't. They have great resources to help you through some of those inconsolable screaming fests.