Date nights are super important for you, your marriage, and even your child. I find that I am a lot more patient with Lucy when I have had some breaks. Also Curtis and I are much more loving and understanding with each other when we gets some alone time where we aren't saying "Can you pass me her blanket" "Did she poop last time we changed her diaper" " Oh that rash is getting worse" ...... as you can see the life of parenthood is a nightlight lit evening filled with diapers and baby monitors.
Date nights are not only good for you and your husband, but for your child as well. It is good for you baby to get out and be around new people, see that there is a world away from mommy and daddy, and to learn something different from their routine. It is good for babies to get use to being around different environments and situations. It will help your child be more flexible; which to me is very important. I have seen too many of my friends kids get too attached to mommy to the point they have a hard time getting things done cause the child can't be left alone, held by someone else, or handle a shift in their daily routine.