When they truly give themselves to you, your whole being ...your personality ...character ...becomes more important than anything else. They just want you there.
That said, romanticism can enhance Love. That non-expected bouquet of flowers; that sudden unexpected trip to exotic Thailand for two with all expenses paid...that walk in nature in another land or place holding hands ... sitting together on a romantic spot in Bali , near the beach, telling her just how much you love her.
Unusually pampering. Come home with a bottle of massage oil one day and rub her back ..very practical and very appreciated after a hard days work. Have breakfast at the Ritz. Act one day differently. Just wake up and say: "Darling, you know what. Why don't we have breakfast at the Tajmahal?"
So bro, I'm not asking you to dream too much or overspend, but to find different and unusual ways to keep the flame alive.
Ultimately, apart from the Divine, of course, you will find that a loving, caring, loyal man being there is the greatest gift.
P.S Of course, caring, loving, loyal ... could also mean that she gets a knock at the door one day while you are at work, and a courier presents her with an amazing bouquet on one of your anniversaries or her birthday.
So include 'surprises' in my answer. Making love in an amazing see through garment surrounded by delicate fragrances and music? Some like this. Have it all prepared on a day that she is not tired, and let her come home to it. Consideration and empathy is a huge part of the process.