Incomplete Fairy Tale

There must be a knight beside every princess who is silently protecting and guarding. But the princess never noticed that the princess has been waiting, looking for her prince... One day, the princess and the prince meet, fall in love, and stay together for the rest of their lives and live happily. Then the knight disappears, with his love for the princess and reluctance, and goes to a place where neither the princess nor the prince can see, and continues to guard the princess silently. However, in my fairy tale, the princess and the prince finally reunited, but the princess finally discovered that she had always been deeply in love with the knight... Then will the princess and the knight be together?