Thats really sad. Just goes to show what extremes people go to in the name of "Love"

I think it goes to show what I've long said (and received strange looks over):

Love and Hate are two sides of the same coin.

I remember a short piece in a book I read many years ago where one character looks at another as a third looks on.

The onlooker thinks to herself:

"What terrible love" and then realises, in a flash of clarity, "What terrible hate".

Such extremes of one emotion are easy to tip over into another emotion very easily.