For me, the last straw was when he picked up the booze for the umpteenth time -- a relapse after 6 months of sober. The love has been dying in my home for a few years because of the drinking and drinking behaviors. It took him being out of the house with little contact for 3 months for me to finally realize that I'm better physically and emotionally w/o him around -- I'm a better me w/o him. This made my decision to leave much easier. The realization that deserve better and its ok to say it.