The Wings of the Dove (1997)

Kate: Every time she smiles, remember that I love you more.

Merton Densher: She's alive, Kate, more alive than anyone I've ever known.

Kate Croy: You're still in love with her.
Merton Densher: I was never in love with her.
Kate Croy: While she was alive, no.
Merton Densher: I'm sorry, Kate. I'm so sorry.