Zoso, I feel for you with the dual diagnosis. I was in a relationship with someone who was bipolar as well as having PTSD from a childhood trauma. The relationship started off almost perfect which should have been a flag but I thought it was two people hitting it off great. That was my first and only other time of being co-dependent but, looking back, much much worse. I thought I was going to be different, learn everything I could about the disease, even diagnose his PTSD, lol. Boy, what a mess i was. He stripped me of so much, all the nasty things he said to me, I didn't know a person could be so cruel until I met him.
My point is, I know how hard it is to deal with multiple issues and it really messes with your whole being. I can only hope you can find love in your heart again with someone who deserves you. It's out there, you just have to believe again.
((hugs))