My boyfriend is sure he is doing something wrong because I never feel like having sex. So many issues are stemming from it. I honestly would be fine if we never had sex, but it wasn't always like that.

. I am pretty sure I have been in a depressive state for the last few months. Its not like we never have sex anymore.. but I honestly don't get into it mostly (I try my best to pretend

). I found out yesterday he knows I just act like I am into it for him. When I'm drunk I can't keep my hands off of him though-- but alcohol can bring on mania I believe, which fits perfectly (right??). A lot of times once we start I actually do get in to it.. but it goes away so fast. Any suggestions? He is very open to different things too-- I can tell him almost anything.
Also-- I have not been diagnosed with bipolar disorder yet, but I am pretty sure I am bipolar.. it just fits too good. I want to learn more about it too so if anyone wants to share any info it is extremely welcome. I really feel like I am going crazy sometimes.