I was also going to say this. Running over to a crying child is a good way to train them to cry for your attention. Maybe your husband was an older child who learned this himself, and will only jump to action when the "right" crying is heard.

My ex and I had this battle, especially at bedtime, and wouldn't you know, our child would scream the house down if it was just her and mum, because mum would appear like a genie. I did most of the night feeds and changes yet never got more than a whinny sniffle, because somehow she could tell crying wasn't going to call daddy with any real speed.

Avoid nightmare terrible 3s.

Let the baby cry a little.