She may say, "Oh that's too much!" when she sees 30 spectacularly gorgeous red roses in a chic glass vase. But she'll love you for it. Make that "l-o-o-o-o-o-ve you." You'll see.
A dozen red roses is so 16th century. Today, if you want to declare love of Shakespearean proportions, make it 36 magnificently red roses in a sparkling cut crystal vase. Eat your heart out, Romeo.