"I am not a good person so I don't know what I did to deserve this." Lex never believed in chances because he'd never been given one. He had always been seen as a Luthor and expected to act as such. Acting out of character only earned distrust. So he honestly didn't know what to think of Anatoly constantly forgiving him except for sheer gratitude and love.

"I love you." No, it wasn't often said between them but it needed to be said now.