Nic, I understand what you mean by sunk costs. I feel that too, we had to endure hardships together, stay with each other when we were still trying to settle down and establish our careers and pay off loans and finally when we are supposed to have life on auto pilot the WHs walked out on us. But I have started seeing it in a different light too. Life is ever changing, there are challenges at every phase albeit a different nature. No matter who we are with, life challenges are not going to go away. Waywards cut and run, we as LBSs must learn to just cut our losses at that point on. How long do you want to stay aboard on a sinking ship. I read an article where happiness is compared to a ballon, the lighter you are from your conscience, the bigger your balloon is and you will fly higher. The waywards typically are depressed because their guilt is like holes in their happiness balloon, while they are pumping it with air being with OP there is also a constant leak. LBSs have holes in the balloons too, from betrayal and deceit but healing is faster once we patch up the holes with letting go band aids. Make your balloon lighter Nicole, fly high with your D, leave WH behind, he has to learn to fix his own balloon