The phrase "Ci Vuole Valentina" fits into a broader Italian tradition of naming muses. Think of "Ci vuole un uomo" (It takes a man) by Loredana Bertè, or "Ci vuole tempo" (It takes time). By substituting the abstract noun with a proper name—Valentina—the speaker elevates a specific person to the status of a universal necessity.
Most likely, given the romantic and intense tone of CentoxCento , the intended ending is (to wake the heart). The date (May 24, 2019) would then mark the day a specific person realized they needed Valentina to feel alive again.
The truncation "Per Sve..." is the article's cliffhanger. In SEO and user behavior, such incomplete phrases generate high curiosity clicks. Users typing this keyword are likely searching for the completion of a sentence they heard in a song lyric, a podcast outro, or a social media story.