Hey stanfoo! Let me preface this by saying you have done nothing wrong in a moral sense. The problem is that the Harm Reduction forums are supposed to be reserved for Harm Reduction-related inquiries. Ask yourself "could this issue put me in either immediate or down-the-road danger"? It sounds to me like you are just not enjoying one of the side effects of this sedative, it being a Thienodiazepine, which for our purposes here should not be considered all that different from Benzodiazepines.
I will however throw you a bone, pun intended. Off the top of my head, I would say that most sedative/depressant drugs do reduce one's libido, whether through desire for sex or ability to have it, but usually both to some degree. You're experiencing a common (not universal) side effect of Thieno/Benzodiazepines. I'm gonna send this to drug culture where they may merge it with another sex-related thread. Best of luck!