If OW is using drugs, do you think your H has developed a drug problem too?

Also - if you ever find yourself in another conversation in which he says he just doesn't know how to get out of the situation with OW - you might simply ask him if there is anything he wants you to do?

He sounds very depressed and confused. Would he be open to any holistic support for his brain healing? At the very least, he should be taking a B complex, fish oil, vitamin D, and getting regular exercise and whole foods. And EMDR is probably worth a try. Also, Tai Chi or meditation or yoga may go a long ways towards calming those PTSD pathways.