i can just imagine diana going:

"i chose her over myself because i loved her just as much as i loved you. i wouldve done the same for you. id sacrifice my life over and over again if it meant saving you and our athanasia. and i wanted you to be there for her in place of me who couldnt - be there to the point that the lack of my presence wouldnt bring her loneliness. but i mustve failed to notice that youd be the one to suffer the most loneliness. im sorry claude. im sorry."