Tzvi Hirsch- I totally disagree.
Jewish couples that get married, have quite an amount of love to their spouse.
Of course that love grows with time. But children have nothing to do with it.
I think children challenge every marriage because life becomes hectic with kids. It’s much harder to give full attention to your spouse with a family of kids. Marriage requires a lot more work then.
HOWEVER, the love only becomes more with each year you are married. You get to know your spouse better, and you share joy and sorrow together.