I've just found and read this thread from start to finish and just wanted to send you a huge hug and congratulate you on your strength in a horrible situation. I've been in a similar "relationship" (not with a doctor though) and found it so very hard to kick the habit and the addiction to the "hit" of another message from my predator (who was a well-liked mild mannered married school teacher to everyone else, but a lying predator to me - not my teacher though, I was an adult at the time). The whole situation was so wrong but so hard to kick.
I can really sympathise with you, but I promise that one day you'll be able to hold your head high and give yourself a pat on the back for handling this and moving forward with your life. It sounds like you have lots to look forward to with your DH and DD and they will be so happy to have you back.