Where Can My Tsundere Sweetheart Run?

Five years ago, she ran away out of hatred and made a mistake out of love. Five years later, after learning the truth, she rekindles her deepest love, but love hasn't waited for her. He's cold and distant, generous with his flirtations and affection toward everyone but her. She's carefree and resolute, barging back into his life to fight for love. A young girl loved by an older man is a treasure, yet happiness remains out of reach. A young girl without an older man to love her is just a weed. Where can she find happiness?!