LilyJane

She has obviously had a bad run with relationships thus far and is relieved to have found someone different than the rest of the crowd.

It seems like the same scenario often happens in their relationship. She will not be able to take it anymore, kick him out, he will be for mercy, say he loves her etc.. she will let him back and then shortly after it will repeat once more, in an endless cycle

Bible reference. Meaning that a castle that is built on top of either sand or salt will inevitably collapse due to a weak foundation.

They are referring to John the Baptist in the bible; Salome asked for John's head on a platter.. There are many paintings of this scene from the middle ages

Great line, I think he is saying that if we don't try, and never risk failure we will never improve ourselves. Each failure fills us with experience and makes us smarter, better people