I did some light reading about maladaptive daydreaming, and it looks as though you have hit the nail on the head.
By MDD I meant Major Depressive Disorder.
The artical I read noted that many people that have maladaptive daydreaming suffer from depression, so I guess that makes since. I have been on a few anti depressants, and I noticed that while on Zoloft, I rarely thought about it, like it was gone, and shortly after quitting, I began doing it again, so it all sort of makes since now.