Everything of this shape is romantic. The shape of love is a shape of the heart.
You can order a pizza of the shape of love or a cake for an anniversary or a birthday party. All of this will be romantic.
Use your imagination:
You order love shaped pizza and eat it with your beloved. You can light up candles and have some alcohol cocktails.
Don't forger about romantic music (Very-very important).
Before you start eating you may ask your beloved to close eyes and you may take out a red rose and rub the rose all over her face and then kiss her (him). Ah-h-h-h-hh-h!
You can buy a cake of the shape of love (heart). You can just have fun and feed each other.

Heart is a symbol of love. Use it if you want to show something to your beloved.