When Do you say Enough?

Some of you know of some issues I've been dealing with at home, some of you don't. For those that do, at what point do I say enough is enough and leave? It is such a hard decision but one I really think I must contemplate. I love this man with all of my heart and soul, but he does not love me the way we once shared. Just look at the love in that picture, truth is the attraction soon died after