Yes, the Italian language may be called the language of love.
But the same statement may be made about the Spanish, Romanian, Portuguese and French languages. These five - and others such as Galician, Catalan and many others on the European side of the Mediterranean - are called members of the Romance family of languages. The term actually refers to their development from the interaction of ancient local languages with the ancient Latin of the conquering Romans.
Additionally, all of the Romance languages are spoken in countries that are known for beautiful scenery, fine food and interesting tourist activities. All three of these characteristics also work together to create romantic environments for those seeking love as well as for those who already have found it. So the play on words is accurate in terms of Italian (and the others in the linguistic family): a Romance language descended from Latin and linked with situations lending themselves to romance.
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