The problem here is that a lot of guys tend to associate romance with trashy novels or cutesy, once-a-year valentines. To be effective, it should be somewhat of a lifestyle. True romance is the little things a couple does for each other all the time, and it doesn't have to be flowers and candy. It can be as simple as warming up her car on a cold day, or making the morning coffee so she can wake up to a fresh pot. It's the actions you take to demonstrate your love for her, not to be confused with sex.
2. Affection-
Affection is simply the physical manifestation of romance. It's cuddling on the couch while watching a movie, or a hug, or a kiss that is not designed to lead straight to the bedroom. Again, not to be confused with sex.
3. Security-
Different women satisfy their need for security in different ways, but they all want it. It's hardwired into their brains. The homemaker types are nesters. They find security in their homes and family. The independent, self-sufficient woman may find it in a career. As a man, you role in her quest is to be supportive and work together with her to make it happen. Be dependable.
4. Laughter-
Every woman likes a man who can make her laugh. However, this is not the stand-up routine you entertain your buddies with at the bar. It's a little bit about recreating that giddy, happy time when you were still trying to impress her with your wit, and even more about being about to laugh each other through the trials of life.
5. Sex-
Now, the one you've been waiting for. Contrary to what you might think, women want sex just as much as guys do. When she doesn't want to sleep with you, it's not a power play, it's because your behavior at that point has made you unattractive to her. Sleepily and unceremoniously rolling on top of her in the middle of the night is probably not going to turn her on. The bottom line is if you respect her, and take care of these first four things, she'll give you all of number five you can handle.
