I did this right from the start. We aren't separated. They have been a great support for myself and him. I speak with his parents quite regular about what is happening with the health of their son. They have been helping us out quite a bit. However, i do have an extremely close relationship with them, so that made it much easier to let them know what was happening. At Christmas the rest of the family was informed what was happening. It wasn't a choice that his parents made, or mine. The behavior they all saw from DH was proof enough that things are not right. I say what can you lose? There is power in numbers. In my case it was worked to be positive. There is a chance if they don't see it for themselves it could turn everything more upside down. I was willing to take that chance, as telling his parents was needed, for more support for me, and him.