Board Thread:Show-Related Questions and Answers/@comment-24386552-20140512183411/@comment-1894786-20140514190557

The only true inconsistency is in Pilot, when Snow blames Regina's hatred for her on the original reason ("She poisoned an apple because she thought I was prettier than her.")

In "The Heart Is A Lonely Hunter" she's not surprised at all that Regina sent the Huntsman to kill her and in her letter writes "I know you'll never have love in your life because of me."

In "The Evil Queen" she told Regina that she was always on her side and that Regina never saw it, meaning Snow was fully aware of Regina slowly turning evil and bitter.

In fact, in 3.22 she actually mentions that Regina's wedding to Daniel was ruined, not that he was killed. It's the same thing in "An Apple As Red As Blood", where she thinks that Daniel ran away.

In my opinion, Snow thought she ruined Regina's life because she blamed herself for Daniel running away and because she knew Regina was unhappy with her father. I mean if "Fruit Of The Poisonous Tree" is any indication, Regina wore her marital unsatisfaction on her face 24/7. Snow would've been an idiot not realize anything.