Anna: I've met somebody who seems to be Sean... I really hoped that he was Sean. I wanted him to be Sean. But I knew he wasn't... The thing is, I'm falling in love with Sean again. That's what's happening. I need you to tell him to go away. Because I can't do it.
Anna: You certainly had me fooled. I thought you were my dead husband... but you're just a little boy in my bathtub.
Young Sean: I'm not Sean... because I love you.
Anna: You make no sense.
Anna: What are you doing?
Young Sean: I'm looking at my wife.
Clara: You're not Sean. If you had been Sean, like I'd hoped you had, you would have come to me first.
Anna: What happened to me was not my fault. There's no way I could have behaved any differently, you now... What I did wasn't my fault. What happended to me wasn't my fault, and I can't be held accountable for it. There is no way I could ever have said to him 'Go away'.I couldn't do it... It was a mistake. And... I'm sorry. But I want to be with you. I want to be with you. Yes, I do. And I want to get married, and... I wanna have a good life, and I wanna be happy. That's all I want - peace.
Clara: You can't go around pretending you're someone you're not.
Young Sean: Well... I can't be Sean... because if Sean was in love with you, I'm in love with Anna, so I'm not Sean.
Joseph: He has no clue how to make something happen. He's living in a land where he's pretending to be something instead of doing the job. And that's the real problem. I'm the one who should be respected, but obviously not.
Eleanor: You know? I never really liked Sean.
Clara: These are her letters to him. Love letters. He gave them to me unopened, to prove that he loved me more.
Anna: You're hurting me.
Answer: I think that 'what sets Anna off' at the ending was Sean's letter to her...where in the very last line, he says, "I guess we'll meet in another life." This shows that Sean really was reincarnated, but he so didn't want Anna to learn about the the affair with Clifford's wife, that he (Sean) decided to let go of Anna, possibly for the time being until he grows up, leaving room for a future sequel.