According to our good friends at Oxford, it is defined as the following:
-1 conducive to or characterized by the expression of love: a romantic candlelit dinner.
-(of a person) readily demonstrating feelings of love: he’s very handsome, and so romantic.
-relating to love, especially in a sentimental or idealized way: a romantic comedy.
It can often be hard to keep it alive, but remember, being romantic does not always have to involve grand gestures. It can be something small and subtle every now and again to let the other person know you care.
All to often in relationships, things can become routine. A touch of spontaneity every so often will keep the spark alive. Wine, chocolates and strawberries by a soft candle light, is a nice and simple starter. Sprinkle some scented rose petals around to finish and enjoy.