It isn't what you've done.

It's what you are.

I believed in you, in spite of what you did to that man--and your coming back when you said you wouldn't--and--But I see now that what you did was you; it was your nature; and I can't believe in you any more." "Agatha!" he implored.

"You're not going to be so unjust! There was nothing between you and me when that girl was here! I had a right to--" "Not if you really cared for me! Do you think I would have flirted with any one so soon, if I had cared for you as you pretended you did for me that night in Carlsbad?
Oh, I don't say you're false.

But you're fickle--" "But I'm not fickle! From the first moment I saw you, I never cared for any one but you!" "You have strange ways of showing your devotion.