Bring back the spark

What are some ways to bring the spark back. I feel like my husband and I are just walking zombies. I want to be romanced and he is just so dull at times. He’s expressed he knows that he doesn’t give me affection like he should. Yet, I don’t want him to do it and it feel fake. How can we really reconnect together?

FYI: we have three kids and it’s hard to have date nights or even be intimate sometimes.

Add in: I do try to be romantic with him, by surprising him, giving him affection, etc but I just don’t get anything in return.