Apologize - Jack/Elizabeth 

Its too late to apologise for their actions. Jack and Elizabeth have both made mistakes, but its too late.
The video starts with Elizabeth's life before piracy and the meeting of Jack and how he rescued her. As their relationship grows, feelings form but to save her life and the crew, Elizabeth sacrifices Jack's life. She then apologises, but Jack can't forgive her. Elizabeth then remembers the memories before she killed him and she wishes she could turn back time. Jack saves Elizabeth many times, and he realises he needs her just as much but he is afraid of their past. Elizabeth then reminisces and sees Jack's death with the Kraken and she wishes she'd stayed on the Black Pearl. Her apology is to late, Jack can't forgive her.