I think it is completely possible for the depression to come back 2 fold. I am sure I have been there, it is hard to keep up with my episodes!! I found that Cymbalta has helped me more than anything, but it might still cause the libido problem. Right now, for me that is a GOOD thing. Keeps me out of trouble, lol.
I have more energy, no panic attacks and the depression is under control. Not completely gone, but I think sometimes my circumstances just suck so bad, that is would be impossible for anyone to be happy. I just have to count my blessings for sure!! I am only one step from being in a shelter, or I have to live with my family. This is better physically, but emotionally I have to battle to keep my head up.
I have been through the gamut of anti-depressants, and the one that seemed to not affect libido, I think was Wellbutrin. I don't know how severe your depression is, but I hope you can find something that will work for you!!