That’s a difficult balance I find, giving the children my time and attention but making sure not to be choosing them all the time and neglecting my husband!
Modern wives have gotten the notion that children come first in a marriage and have developed this notion that children require great amounts of your time. Not sol That can actually be a detriment that doesn't present itself until it's too late.
A marriage is you and your spouse.....'til death. You have your children under your control (at least you'd better) for little more than a dozen years then under your influence for a handful more.
Your first obligation is to your spouse. It takes a good marriage to raise good children so your energy should focus on your marriage. (and yes you'll read this in old Catholic marriage manuals)
The most important thing you can teach your children is self control because without that they'll learn nothing and accomplish less.
Husband and wife are different, their responsibilities are different their likes and dislikes are often different but hopefully all these differences will compliment one another and keep each other interested. You'd better have some shared interest when the nest is empty. God put you together for a reason.
Communication during the very early part of the marriage is absolutely essential. Get your roles straight and then you will truly be a team in work but truly one. Have you ever seen an old couple that never seem to talk but merely look at each other and the other knows exactly what is being communicated? That's team work and that's being one.
And that's just my two cents worth after almost 65 years of marriage.