The Continuation of Love Through Time Travel

She originally thought she would never go back, she thought she should forget everything, but just for the words "I will definitely wait for you", she still chose to go back to the past and see the gentle and affectionate prince again. However, she met a handsome businessman who looked like an old friend, and an imperial doctor who was silently guarding her. Should she follow her heart or start over? Where did her love go?