Nora Ephron said this quote
“ That's the catch about betrayal, of course: that it feels good, that there's something immensely pleasurable about moving from a complicated relationship which involves minor atrocities on both sides to a nice, neat, simple one where one person has done something so horrible and unforgivable that the other person is immediately absolved of all the low-grade sins of sloth, envy, gluttony, avarice and I forget the other three. ”