As a married couple, your romantic relationship needs to be healthy, and believe it or not, God desires for both of you to be fulfilled in one another. Here are three tips:
1) Talk about the things you want from one another. Discuss your sexual desires, romantic desires, etc. Your spouse won't know if you don't tell them. Don't expect them to be mindreaders.
2) Make a game out of one upping each other in the area of romance. See who can get up earlier to make breakfast in bed, or who can get home from work first and make the other a bubble or milk bath. Things like that make coming home fun and gets the engines reved up.
3) Take walks together. Talk to one another about something other than bills and kids while you walk. Maybe even hold hands. Think about the last time you saw an older couple holding hands in public. It probably gave you a warm, fuzzy feeling. It's not sexual, but it is romantic and sweet. you need it all in a marriage.